Subaru Rough Idle After Battery Change



iATN is the world's first and largest online community of automotive professionals, where automotive technicians and other auto industry pros perform real-world vehicle diagnosis, and discuss theory, shop management, and other industry issues among their peers. couple days later it was back, only now when i start my car it hesitates, as well as idles rough at around 700 rpm. MAP Sensor Change: 24. 0 with 54000 miles, when i leave the car for a few hours or overnight it is very hard to start. Also, internal resistance may be increased raising the required firing voltage to the point where the engine may misfire under load. By introducing propane to the area where the suspected leak is you can sometimes notice a change in the idle. After just a few seconds, your vehicle is safe to drive. The Check Engine light has never been on before, and this is the first battery swap ever, so it's gotta be related. Subaru is the automaker with a remarkable history. Tasks performed that worked with other cars: - Changed plugs, pvc, air cleaner. After picking up the car, though, we noticed that the idle seemed much rougher than it had in the past. After reading the many posts about this topic here and elsewhere, it does appear to be a common issue with a broad range of young and old vehicles exhibiting the rough idle behavior. a rough idle when the car is first started. Then I get a call back an hour later to tell me that my model year is not included in the recall and that running out of oil after 2000 or 3000 miles is normal for a 2010 Forester, but excessive for a 2011 or 2012 Forester. But this will drop RPM's and almost stalls quite frequently. This is the change in total ignition timing at idle based on coolant temperature. And at the case when you ask: Why is my car shaking when idle? It is the time when your car has trouble with the car shakes when idle situation, such as getting up and down or struggling to maintain a steady speed. But the job isn’t done yet. I have a 00 subaru outback 2. Hi all, My 85 has an EJ22 in for about 10 years with about 20,000 miles. If you are still experiencing the rough shifting after changing the fluid and filter then you may want to have your vehicle looked at by a transmission specialist. Get active safety and driver assistance in the front, side and rear of your Nissan vehicle for a more confident drive. Anyway coming back from uni last Thursday, it started fine, drove it for about 20 mins (constant at 80-90km/h), came to a stop at a set of lights and it started idling really rough like it. Or pretend that burnt oil smell is not coming from your engine. I have a 00 subaru outback 2. ka24e misfiring/rough idle/white smoke smells like FUEL HELP. I disconnected the battery before starting the replacement so the CEL would go off and ECM would reset to base state. Some customers may comment on rough idle and/or stall when sitting at a stop. 2006 Impreza WRX - rough low idle to stalling, very hesitant on acceleration - HELP Bought a 2006 WRX with some known issues that I thought I could remedy but still not able to resolve so I've come to the forums for advice. Morning all, after some suggestions for low idle speed. Your pictures and explanations were clearly defined. Only thing that changed was the internals but now I have a really rough idle and it tries to stall when coming to a stop, and hunts really bad when unloading yhe AC compressor. Has anyone else noticed a rough idle when you first start the car? My rpm gauge seems to jump up to 1,200 then back to 800 a few times when the engine has been sitting and is first started. Many PCMs have to undergo a "relearning" procedure after they’ve been installed or if they’ve been disconnected from the battery. Edit: Could be due to the gas going bad, but IIRC it usually takes longer than 3 months for that to happen. The idle speed has been computer controlled on all fuel injected vehicles since the early 80's. - The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power to the Engine ECM has been interrupted. Okay, I've been reading since I got my WRX, about the rough idle issues. Some of the symptoms of a dirty or faulty MAP sensor include a rough idle, higher fuel consumption (lower fuel economy / MPG) and hesitation or jerking while accelerating. Subaru Check Engine Light and Code # P0420 Explained By Justin Stobb on January 18, 2011 in All Wheel Drive Auto News , Featured , Subaru Repair Seattle If the check engine light comes on in your Subaru there is always a corresponding code set in the computers memory. I also buy a can of Mopar combustion chamber cleaner and shoot that down the throttle body (has helped my idle). The affected vehicles were produced between June 3, 2003, and Aug. It should relearn the idle strategy after a short period of normal driving. This morning (-5 to 0F, light wind), starts up fine, no stumble no "misfire" at initial startup, then once that's complete it acts a little rough, some flashing CEL at idle (likely misfire), couldn't read it with my cheap scanner I had along (was only on for a few seconds at cold idle). I unhooked the negative cable from the battery. It is normal to get some dimming at idle when running all sorts of stuff like the rear defroster. Here's what he has done: Full oil change and filter replacement, Tire rotation, Brake inspection, cleaning and adjustment, leveling of all fluids, Full battery, starter and charging system check up (battery replaced), checked all lights and wiper blades, A/C system check, throttle pedal replacent. An idle air control actuator or idle air control valve (IAC actuator/valve) is a device commonly used in fuel-injected vehicles to control the engine's idling rotational speed. I find that whenever you disconnect the battery, it idles bad for a few days. Need to relearn idle) or if this is a new problem not associated with the battery at all. It has only actually stalled 3 times in the past 2 years. Hi, My wife's Subaru has been at the shop for months. It also caused the car to very rough on cold idle. If this happens, manufacturers have cost-effective hybrid battery replacements and battery recycling programmes in place. Thanks!-BDP. Sometimes the ABS warning light will come on when the vehicle has a low battery, like after it's been jump started. If you don’t know what’s wrong, the AutoZoners at your local store can help troubleshoot your vehicle with Fix Finder, our specialty tool to find out why your Check Engine Light is on. When Should You Replace the PCV Valve? By Rick Popely. at my first light at the end of my block, my car started shaking, which has never happened before. The code definitions are a good starting point when determining the cause of the service engine light but where do you go from there?. it's the same air filter as the old one. Car starts up fine, idles fine when cold and sits quite happily at 1000rpm. Remove throttle plate and clean with throttle cleaner and toothbrush. Over time, a large amount of carbon can build up inside these parts, pushing them beyond the limit that the computer can adapt to. I have a 00 subaru outback 2. 1,300 rmp's. XV Crosstrek HYBRID(Auto start-stop / EV mode)Check Sheet When a customer experienced difficulties in getting into idle stop (Auto start-stop) mode and/or EV mode, please obtain following information for FHI's investigation. Rough Idle 3. The steering radio volume and change controls are in the opposite direction of one another which isn't too hard to correct if designed appropriately. Here are the dashboard warning lights for the Subaru Outback f ourth generation (Mk 4, 2009-2014) and f ifth generation (Mk 5, 2015-2019). It's generally located on the throttle body and in the case of my 2000 Dodge Ram 5. I received a call that the oil consumption is deemed excessive, and Subaru is going to replace the engine. Then there are those like our Subaru Outback, which requires a little bit more time and familiarity to really get under their skin. This happens because when the battery is disconnected, all learned settings in the engine computer, including the idle speed are reset. The code definitions are a good starting point when determining the cause of the service engine light but where do you go from there?. org and ask the guru's advice. Before Buying a Replacement Battery, Do This First. This self learning function is designed to stabilize rough idling vehicles. When it is being charged, it gives off a gas that can be harmful to the mucous membranes in the nose. I tried to pull out vacuum hoses and see if it changes the idle, It does change abit (higher) then I put it back on and then it slightly goes down, but still 3000RPM and you can really smell the fuel. it's. Could this be a timing issue? Thanks in advance. Re: Having issues, engine shaking at idle, rough idle Hmmm, maybe this is a AVCS problem where one of the camshafts are stuck in one position, would explain the poor idling, and maybe there is nothing wrong with the camshaft sensor it just sees the cams being out of sync?. This idle will be high enough to "limp home" at 30-40 MPH, but obviously can't be driven much before repair. If all that is good swap vanos solenoids if fault follows replace the faulty solenoid. I suspected the alternator, so I checked it out, but it's actually putting out 13. After sliding the new battery in its seat, refasten the bracket by screwing back its nuts and bolts. Drove fine for 168,000 miles. 6 dynamic poor idle after change of timing belt? A warm engine tickover for my 1. Started fine at the pump, drove about one and a half miles home and while in the garage I noticed a very rough idle, the whole car was shaking. The issue: Car does not idle and just dies or car has a rough idle with RPM bogging constantly. I installed the new coil and after the car ran for 30 seconds it was still running rough. Research the 2017 Subaru Crosstrek at cars. This idle will be high enough to "limp home" at 30-40 MPH, but obviously can't be driven much before repair. Our work includes Reupholstered seats, Custom Paint, Brand New Tires, Fully Serviced Vehicles, and Awesome After-Sales Support. The mechanic said he cleaned the lmbda sensor and it was apparently full of dust but the symptoms. yes 11 miles same day back 20452 - 06/08/2016 - Check Engine Light - O2 and Battery If Subaru production made a change from composite back to. I hope you changed the oil after letting it sit that long. … read more Paul M ASE Master. The truck start to shake and all power was gone, 0 on the RPM and the SES light flashing. There are many things that could cause a car to stall, with solutions ranging from simple to complex. rough idle after cold start on 3. The valve is located on the side of the throttle body. Toyota recommends a throttle plate cleaning on vehicles more than a few years old after a battery disconnect. It's generally located on the throttle body and in the case of my 2000 Dodge Ram 5. Went to my lawyer's. To try and resolve this I cleaned my throttle air intake, and got a new air filter. Rough idle after battery change and fuel change. If this happens, manufacturers have cost-effective hybrid battery replacements and battery recycling programmes in place. When Should You Replace the PCV Valve? By Rick Popely. Cold starts are fine, because it goes into fast idle, but when it warms up, then it can stall as its trying to find the right balance. If the crud is minor, the result is a rough idle for a period until the system relearns a new starting position for the plate. But when I started truck it was fine idle until I turned a/c on then it never went exactally back to perfect smooth idle like he said about 150 rpms. This is the time to look at the causes and fixes. P2096 Subaru trouble code Diagnose and fix a P2096 Subaru trouble code. So I've got an annoying issue that I cannot figure out, when warm, my idle will bounce and won't stay steady for about 5 minutes after coming to a complete stop. I changed the spark plug and same problem. The Scion FR-S and Subaru BRZ twins have been some of the most acclaimed driver's cars we've seen since the original Mazda Miata hit the road. Re: poor idle after changing timing belt help please Originally Posted by dan86 My mechanic changed my timing belt 1 week ago and since when idle the car is on 800rmp feels like it will cut off any minute and its very noisy and vibrates when idle. it is possable that all you need is a ecm reflash most all dealers can do this and it should not cost any more then a hour of time (trust me i work at a subaru dealership) i my self have been reflashing for all the o2 codes any time i see a 420 code for which ther is no offical reflash and out of aprox 30+ cars only 1 has come back for a 420 code a second time good luck. Severe cases of stalling after replacing the battery may require that your throttle body or your idle air control valve be cleaned out. 1) Turn off the lights, aircon, stereo or any system in the car that draws extra current on top of the engine. Subaru's recall campaign number is WQH-44. Rough Idle after Vtech Solenoid replacement. I'm POSITIVE everything is installed correctly and all plugs/coil packs are on tight. 8-Sep-2019-AM : Subaru Rough Idle After Battery Change @ Subaru Rough Idle After Battery Change EZ Battery Reconditioning Best Best Subaru Rough Idle After Battery Change. idles fine cold, runs smooth, once warm engine stumbles and has rough idle. However, once up to operating temperature she sits at about 500rpm, pretty steady speed, no hunting. Subaru is the automaker with a remarkable history. As a result the car will usually sort out the idle problems after a week of running. Nowadays, there's a possible reset procedure that can be used, and it can be done by most car owners right at home. Sometimes while. The motec timing had been thrown out by the change so the crank and cam angle sensors were trying to read at the same time causing a miss at x rpm. These services will be performed free of charge. It is possible your battery is simply too small for your vehicle. So I've got an annoying issue that I cannot figure out, when warm, my idle will bounce and won't stay steady for about 5 minutes after coming to a complete stop. If you just replaced the battery and car won't idle or stay on, this is the solution for it. 87 Subaru Justy, Check Engine Light 90 Subaru Legacy, Overheating Problems 92 Subaru Legacy, A Hot Start Solution 92 Subaru Sedan, Hot Start Problem 93 Subaru Legacy Turbo, Engine Blow-By 97 Subaru Outback Wagon, Fluttering 98 Subaru Outback, Mystery P0400 (EGR) Code 99 Subaru Forester AWD, Binding Transmission 99 Subaru, Fuel Trim Malfunction. I'm POSITIVE everything is installed correctly and all plugs/coil packs are on tight. The steering radio volume and change controls are in the opposite direction of one another which isn't too hard to correct if designed appropriately. Is that the fix itself, is it worth fixing, what is causing this problem. My 2015 Forester idles poorly, can it be adjusted to idle smoother? 11 Answers. Oil Leak Causes and How To Fix Them. I just cleaned the air filter and 02 sensor. After running it for a bit or even just revving the engine a little, the idle rises to no more than 1250rpms and doesn't come back down at all unless you shut the engine off and crank it up again. I have a 2005 Xterra, ran very good up until yesturday Nov 24, 2009. The driver of the vehicle may be unaware of this problem, until the battery power is lost. 3l gdi engine When addressing a customer complaint of rough idle, which occurs only on the first start of the day and last s for 30-45 seconds, check for the possibility of poor injector performance in a particular cylinder. Need help after I replaced the battery AU Falcon. I was wanting to replace it myself. 2018 Subaru Forester Touring There is a bit of lag time/ a jolt between going slow and acceleration, but not a huge deal. And my mpg actually went up, after noticing it went down after installing the high output alternator, which caused me to wonder if it was the battery or the rebuilt high output alternator which was causing the rough idle, since I did have the mass airflow sensor and throttle bottle cleaned. Below you will find the most complete list of Subaru trouble codes available. For classic/luxury & sports car owners, fall is a sad time of year marking the end of the driving season. 03 Honda Element Rough Idle 4 Answers. Hi, My wife's Subaru has been at the shop for months. I had tried the ecu reset to no avail. Is there a forum or a video already on this that you could direct me to that would explain in detail how to replace the A/C High Side, O-Rings, and adding Freon? I've found a website that explains adding the Freon. Battery changes causes car to "shudder" and the computer definitely had to relearn its idle control after a battery change/discharge. The other issue is a too small battery, buy a bigger battery plate from Repco and stick in a 500 CCA plus battery. After having the car back for 3 weeks, same thing happened again. If the crud is minor, the result is a rough idle for a period until the system relearns a new starting position for the plate. P2096 Subaru trouble code Diagnose and fix a P2096 Subaru trouble code. Its name comes from three elements: Boxer engine, Rear-wheel drive, and Z standing for the zenith. Went to my lawyer's. but if you let your car idle for a few seconds it will drain your battery. Edit: Could be due to the gas going bad, but IIRC it usually takes longer than 3 months for that to happen. The cars I saw a dramatic idle relearn indications on (after replacing the battery) were eary 90’s 2. Even after I relearn the idle procedure - the idle is good hasn't changed before and after nothing change. 0L engines may fracture, resulting in the engine stalling during driving and the inability to restart the vehicle, increasing the risk of a crash. Its just an idle issue, once the car gets going it runs fine. Honda Civic: Why is My Car Shaking at Idle? If your trusty Honda Civic is shaking violently, accelerating poorly, or declining in fuel economy, diagnose and repair the problem as soon as you can. This could happen during acceleration, driving downhill, or gear change. ECU reset after alternator change? (look up 'learningview' for Subaru for a full picture). If you want a good stock like damper, get the ATI. How to Reset the ECU After Changing an O2 Sensor by Alibaster Smith. replaced battery. 2l and all of a sudden she goes it a short violent fit. WARNING: Cancer and Reproductive Harm - www. Well it wasn't the coil. A P2096 Subaru trouble code is defined as P2096 POST CATALYST FUEL TRIM SYSTEM TOO LEAN (BANK 1). Found on this forum rough idle cleaning the throttle etc Did that and it cranked up, but the RPM read 900-1100rpm. Find out why the 2015. Description. Cause: This condition may be caused by a fuel trim value not being reset after an intrusive evap purge test, causing a temporary lean condition. If the crud is minor, the result is a rough idle for a period until the system relearns a new starting position for the plate. We have notified Subaru every time that the car would do this. The local Mercedes dealer confidently stated that the problem was a faulty throttle body, which I had them replace with a brand new one and that made absolutely no beneficial difference, and to boot. Was driving my 1999 2. Its just an idle issue, once the car gets going it runs fine. yes 11 miles same day back 20452 - 06/08/2016 - Check Engine Light - O2 and Battery If Subaru production made a change from composite back to. My car shakes all the time. An OBDII code checker identifies defects in the exhaust system of the car. If it drives fine and is rough only at idle it sounds like a vacuum leak. So I've got an annoying issue that I cannot figure out, when warm, my idle will bounce and won't stay steady for about 5 minutes after coming to a complete stop. Subaru, Legacy, 1993 I plug in the MAP Sensor the car will idle rough and die. 1995 Subaru Legacy - Uneven and Rough at Idle? This problem seems to have started after taking my Subie to a new place for an oil change, but that could be coincidence. The ECU probably needs a hard reset after battery change, rather than relying on it to pick it up eventually. Since that service my car has been having idle issue's usually after the car is warmed up and under load, but sometimes it will happen right after I start the car. So I drove from my lawyer's office to my home no issues. it is possable that all you need is a ecm reflash most all dealers can do this and it should not cost any more then a hour of time (trust me i work at a subaru dealership) i my self have been reflashing for all the o2 codes any time i see a 420 code for which ther is no offical reflash and out of aprox 30+ cars only 1 has come back for a 420 code a second time good luck. iATN is the world's first and largest online community of automotive professionals, where automotive technicians and other auto industry pros perform real-world vehicle diagnosis, and discuss theory, shop management, and other industry issues among their peers. I push started it and it drove just fine. They did run a injector cleaning kit. In carburetted vehicles a similar device known as an idle speed control actuator is used. I was able to get the idle down to 1000 rpm by cutting idle parameters down to 500 on the programmer. 2018 Subaru Forester Touring There is a bit of lag time/ a jolt between going slow and acceleration, but not a huge deal. Hence, after knowing the ways to troubleshoot rough idle when warm problem, anyone. I took it t0 the dealer but hey say it is normal. 2019 Subaru Forester First Drive: Improving What Customers Want Most Safety, cargo room, and amenities are priorities, power not so much. To learn more, see reviews below or submit your own. Fix-It Questions - Main Page will not alow car to start after battery change. , MA (2012 Subaru Forester X 2. Later in the day it almost refused to start. Just did full tune up and still rough idle??? 2005 Subaru Outback XT 5MT has. It's going to a different Subaru Service center next week. In most cases, this is caused by a blown fuse in the engine compartment fuse box. i've had this problem before after a shop reset the adaptives after having some work done, but the car reset itself after just one battery. The other issue is a too small battery, buy a bigger battery plate from Repco and stick in a 500 CCA plus battery. Always allow. I'm POSITIVE everything is installed correctly and all plugs/coil packs are on tight. It's due to low battery voltage and doesn't indicate malfunction. 2015-2018 Subaru Outback MAP Sensor Replacement Guide. The slightly elevated ride height and. i've had this problem before after a shop reset the adaptives after having some work done, but the car reset itself after just one battery. Shop Subaru Forester vehicles for sale in Thornton, CO at Cars. Also the idle screw is backed all the way out and still have a reading of 0 on the idle air control. The sound the engine gives off is constant and smooth but if your spark plugs aren't performing as they should, your engine will produce a rough and jittery sound while producing larger vibrations through the car. Page 63- The Subaru CEL thread Service & Maintenance. I have a 00 subaru outback 2. Cylinder 4 made no change in engine idle. Since that service my car has been having idle issue's usually after the car is warmed up and under load, but sometimes it will happen right after I start the car. Older vehicle engine limp home modes Actually the computer has had "it's foot on the gas pedal" for quite some time. After just a few seconds, your vehicle is safe to drive. (if you want cancel orders or change address pls contact us within 6 hours after payment,or we are not responsible for shipping a replacement. All US Mini Trucks imported trucks are at least 25 years old to comply with Federal regulation regarding imports. I also did what Nipper suggested which was disconnect each plug wire one at a time and note any fluctuation in idle. According to reports, many owners have complained about rough idle and stalling conditions in their cars. It may not matter, but if the car is still running oddly after the relearn then I would buy the correctly gapped double platinum plugs. 2006 outback. Started my car to drive back had a slightly rough idle but I just thought it might be a gas issue and was going to throw some gas treatment in the tank then top off with some other gas after I went back to my lawyer. I decided to change the plugs. I drove a car with a very dodgy battery just a few days ago. I have had a similar ongoing experience with my 2006 Impreza; rough idle which came to a head when I was stalling whenever I let off the gas. A common cause of an engine running rough is faulty ignition timing. it was normal all morning, and then i stalled it for some reason. Drove fine for 168,000 miles. Rough Idle before and after spark plug change I bought the Autolights because the AC Delco does not come in Iridium. (after fresh oil change). Remove throttle plate and clean with throttle cleaner and toothbrush. P and N give a smooth idle at ~1000, and anything else gives a sickly, rough, misfiring idle at 500rpm. This is a 1995 Subie Legacy LS Wagon with just over 100,000 miles and a 2. The strange thing is that the misfire only happens at a dead stop. Please fill out the sections with "X" corresponding to / /. org and ask the guru's advice. The code definitions are a good starting point when determining the cause of the service engine light but where do you go from there?. ECU reset after alternator change? (look up 'learningview' for Subaru for a full picture). But six weeks ago after I had the battery replaced, idle speed dropped to near zero. The other issue is a too small battery, buy a bigger battery plate from Repco and stick in a 500 CCA plus battery. My 2015 Forester idles poorly, can it be adjusted to idle smoother? 11 Answers. i recently bought a 2004 subaru outback 3. Simply drive the vehicle for a short time for the idle to subside to normal operation. Found on this forum rough idle cleaning the throttle etc Did that and it cranked up, but the RPM read 900-1100rpm. Some customers may comment on rough idle and/or stall when sitting at a stop. When it is being charged, it gives off a gas that can be harmful to the mucous membranes in the nose. 2003 Subaru Forester. The ECU now has default numbers in its trim memory - it has to adjust them to match the tune of your engine and its sensors and actuators. 2005 Subaru outback 2. Replace oil filter cap then. So i went to change my spark plugs the other day and after everything was installed back together i had a rough idle?? So i took the new plugs out to make sure it wasn't those and re-installed the original plugs, still rough idle. The strange thing is that the misfire only happens at a dead stop. It's been flawless for 5 years. All US Mini Trucks imported trucks are at least 25 years old to comply with Federal regulation regarding imports. The dashboard display layout and warning lights location may vary depending on the year of manufacture and model version of your Subaru Outback. Usually the idle after start is fine but when in drive and foot is moved from the accelerator the engine wants to run bouncing between 250 and 750 rpm then sometimes will die. NOTE: This bulletin applies to the above listed vehicles equipped with a 4. We have notified Subaru every time that the car would do this. This morning (-5 to 0F, light wind), starts up fine, no stumble no "misfire" at initial startup, then once that's complete it acts a little rough, some flashing CEL at idle (likely misfire), couldn't read it with my cheap scanner I had along (was only on for a few seconds at cold idle). This is a 1995 Subie Legacy LS Wagon with just over 100,000 miles and a 2. when going down road, car runs ok as long as i dont mash the gas or need to accelerate fast. Rough idle ,stalls when 1st start 6 Answers. It starts easily but it just idled a bit rough. This happens because when the battery is disconnected, all learned settings in the engine computer, including the idle speed are reset. Also please check out the statistics and reliability analysis of Subaru Outback based on all problems reported for the Outback. 3v at idle but above that at around 2k and up it would act normal aka why pepboys thinks its good. Over time the system learns to accommodate and reposition the opening position, but when you changed the battery the ECU lost all learning and returned to factory defaults. 2006 Subaru Forester won't idle correctly after changing battery I had my battery changed on my 2006 Subaru (manufacture date is July 05 on my car) and when I started it it was hard to start/turn over but it eventually did. Under most circumstances, it will relearn after just driving the car for a while, but if your car continues to experience an abnormal idle, or you just don't want to wait for it to relearn on its own. While there are a variety of reasons your Subaru Forester has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. Is there a forum or a video already on this that you could direct me to that would explain in detail how to replace the A/C High Side, O-Rings, and adding Freon? I've found a website that explains adding the Freon. I was able to get the idle down to 1000 rpm by cutting idle parameters down to 500 on the programmer. If you just replaced the battery and car won't idle or stay on, this is the solution for it. Battery changes causes car to "shudder" and the computer definitely had to relearn its idle control after a battery change/discharge. replaced battery. This could happen during acceleration, driving downhill, or gear change. I have a built MY2010 EJ257 engine in my 08 STi, Edwin's old engine. found nothing idles fine cold, runs smooth, once warm engine stumbles and has rough idle. Not sure if related. Could this be a timing issue? Thanks in advance. Also the idle screw is backed all the way out and still have a reading of 0 on the idle air control. 6) If you miss the symptoms in the first week or so after a battery disconnect then the idle correction still keeps learning - as does the long term trim correction. Took it to auto zone the said Low Output from alternator. You can also request to top it up during a regular service. Even a little bit of crud on the plate lip can impact airflow and idle speed. To reset the ECU just disconnect the battery for a minute and put on the Hazard warning lights (this. Is there a way to change the number of cylinders to 4 on initial setup so the tac reads correctly. How to fix it ? Rough idle and bad acceleration. About a week ago my car started running hot I replace the thermostat in it but also when it was running hot and my battery and my brake light had came on I replace my battery in my alternator about two years ago after I replace it though my car had broke down with transmission problems and it had sit for about a year after that when I go out in. I took it for a drive and now as it idles it cuts off sometimes and if it doesnt cut off it drops to like 200rpm and kicks back up. It did this through out the day. When I drive from my house in Minneapolis to golden valley it's at operating temperature. I took it t0 the dealer but hey say it is normal. The dashboard display layout and warning lights location may vary depending on the year of manufacture and model version of your Subaru Outback. Could this be a timing issue? Thanks in advance. It may unstick itself after a while, or it may need to be looked at. it's. I'm gonna remove the throttle body and iac again and give it a deeper clean and try to check resistance like a should've the first time, my mistake lo. Hi, My wife's Subaru has been at the shop for months. Used to idle fi. 5i Premium auto parts store and they honor the guaranty so they give me a new battery. At start it revs to 1200rpm then settles like normal. When I pulled out the coils, the problem cylinder coil was so hot it burned my hand. It's like having a new vehicle, but without the payments. Please fill out the sections with "X" corresponding to / /. Should I be worried about this? There are still 24 months left on the warranty. And at the case when you ask: Why is my car shaking when idle? It is the time when your car has trouble with the car shakes when idle situation, such as getting up and down or struggling to maintain a steady speed. Sometimes, vacuum lines cause a rough idle due to a vacuum leak, and these lines are also simple to replace. Stalling is caused by a loss of air, fuel, or electricity while the engine is running. The car did work well for a day period (90% sure of this) after cleaning the Throttle Intake so I'm pretty confused. I just don’t see (or haven’t seen) idle relearn issues on the cars of today. You have come to the right place if you need new or replacement parts for your 2001 Legacy. It determines. couple days later it was back, only now when i start my car it hesitates, as well as idles rough at around 700 rpm. Idle seems too low, exhaust pipe shaking, a hand over the exhaust feels almost like a skip. 1998 V70 with 73K miles. 3, this time i put my foot hard down on the accelerator and crank after some more. Hey all, So a few weeks ago I had my timing belt, and s-belt changed by a Subaru dealership. Need help after I replaced the battery AU Falcon. 2006 Impreza 2. Research, compare and save listings, or contact sellers directly from 198 Forester models in Thornton. For all the technology advancements out there this car made a very rough incorporation. My subaru always rough idles after a battery replacement. I'm gonna remove the throttle body and iac again and give it a deeper clean and try to check resistance like a should've the first time, my mistake lo. I suspected the alternator, so I checked it out, but it's actually putting out 13. Over time the system learns to accommodate and reposition the opening position, but when you changed the battery the ECU lost all learning and returned to factory defaults. as stated above my friend owns this car and has had this fault the last few weeksidling rough hesitating and so onsometimes cutting out at junctionsthe car is a 2000 reg subaru awd turbo,with baileys dump valve etche has no engine lights on and so onhe was advised the air maff sensor are very common on themso hes unplugged the maff while engines warm and running and the car. You're right to assume that something else going on. How to do the hard reset depends upon your car: it may be as simple as pumping the accelerator 10 x within 10 seconds- but is probably not. I have a 2AZ-FE 2. Purchased recently with 69K miles so I don't have the full history but have recent history (at end of the post). Toyota recommends a throttle plate cleaning on vehicles more than a few years old after a battery disconnect. Under most circumstances, it will relearn after just driving the car for a while, but if your car continues to experience an abnormal idle, or you just don't want to wait for it to relearn on its own. I took the wires going to cylinder 3 and plugged them into cylinder 4. It begins the misfires very shortly after starting, so I don't think it's enough time for it to go into closed loop with the O2 sensor in the equation. There are a few other areas that these vehicles like to leak, but after these are taken care of these vehicles are pretty bullet proof in my opinion. I hope you changed the oil after letting it sit that long. This morning (-5 to 0F, light wind), starts up fine, no stumble no "misfire" at initial startup, then once that's complete it acts a little rough, some flashing CEL at idle (likely misfire), couldn't read it with my cheap scanner I had along (was only on for a few seconds at cold idle). So I drove from my lawyer's office to my home no issues.