2015 wrx rough idle. Aug 6, 2008 · Weird Rough Idle.

2015 wrx rough idle | Jun 8, 2016 · Out of nowhere the car started to idle rough, and sometimes will stall if you don't give it gas. Mods: Cobb Turbo-Back, ETS Intake w/Box. Had a friend tell me to disconnect the battery and have the ecu relearn everything. Started doing own maintenance to understand more. It's idling really low (750 rpms), stalling when I push the clutch in, and it feels really low on power. And it works, too! My 2015 Subaru Forester 2. Jun 26, 2016 · 2017 WRX vs STi is not even a comparison Completely different drivetrain. 2015 WRX Rough Idle & CEL This morning I stopped for a coffee on the way to work and in the drive thru line I noticed the new WRX was dropping to < 500 RPM or so and nearly stalling, roughly once every 10 seconds, then going back to normal. If you like the vids and want to help make more: paypal. Save Share Reply Quote Like. The maintenance schedule for the filter is every 30K miles. Jun 18, 2014 · Talked to a guy with a '15 WRX at a cars and coffee and the way he described it, it sounded like the DI/rough idle/exhaust cam/unknown issues some BRZ/FRS owners are having. Rough idle is a symptom of a DI system needing cleaned, but that happens around 60-100k miles and only early if you are really soft on the car. The O2 sensor takes much longer to come online with the lower idle RPM. Boost goes a bit crazy along with some loud pops as you can kind of hear in the video. Oct 25, 2017 · Car runs great with the exception of it having a rough idle once in a blue moon. Dec 5, 2016 · I Have a 2015 WRX that I bought Pre-Certified with 16K miles. I recently had the dealer replace a bad throwout bearing in my car. Pretty new to working on cars in any fashion. Fixed the problem for a few days, but then now I'm getting rough idling again (but doesn't stall). This is normal, at start up the ECU runs the high pressure fuel pump (the whining noise you hear) and high rpm to heat up the catalytic converter, as the cat quickly starts to get up to operating temp there are mini combustion explosions of the unburnt fuel hitting the cat (the knocking noise you hear). It use to show a misfire cylinder 3 code so I changed the spark plugs and seafoamed the intake. Aug 21, 2024 · Hello everyone, I am here because I have been having some issues with my 2015 WRX lately & I am hoping to get some advice from the community; the past few weeks I have noticed that my WRX has started stalling intermittently when coming to a stop & the idle has been rough, especially when the engine is cold. Oct 17, 2018 · Next day I had the same rough idle again at cold start and again the check engine light came on for misfire. Since I picked up my WRX, I have been experiencing an intermittent rough idle/stumble/shake when idling at a stoplight. I would bet that you are have a CVT problem and have a worn out input cone. Being a first time WRX and Turbo car owner. Jump to Latest 2015 STi: Still Stock 04 STi, 04 WRX: SOLD. It does it about once every 30 seconds at normal idle. I just wanted to get some opinions of other WRX owners to ask if this is normal of not. Inspect the spark plugs. 3 Premium 6MT (66K miles) was having a somewhat rough idle for about a year, down at about 600-700rpm when sitting at a stoplight or in stop-and-go traffic. Have the injectors professional cleaned or at least run several bottles of a good injector cleaner through the gas tank. After the idle started acting funny I was driving to work and the CEL came on, it was code P0011. Apparently they had to disconnect the battery to do the work. 0. It’s my first winter with my 2020 WRX and I’ve been experiencing a rough idle on start. Crawford had the same problems with their CVT cars. . Nov 16, 2015 · Upon start up it will idle at about 1500rpm, then drop to about 500 or so and seems as if it's going to stall out. The car stars fine, warms up fine, but when it settles down into a resting idle (700RPM) it seems a little rough. I have read/heard that in cold weather the intake manifold gasket can get messed up and cause rough idle and i imagine this would also cause afr issues at idle as well. The engine has been getting progressively rougher on cold start idle. If the gas pedal does respond, revs only climb up to 1. Almost like the engine is hunting while cold starting. me/MrSubaru1387or consider becoming a patro My 2015 WRX is running rough at idle, most likely due to either the mass airflow sensor, fuel injectors, throttle body, or spark plugs (I think). This time they did some kind of a turbo related update/patch on the ECU and that basically almost entirely took care of the rough idle issue, the idle hasn't be rough at cold starts since then and no lights have come on. I lowered it a whole bunch as a test. Test the fuel pressure. Oct 28, 2010 · On the 04+ WRX's/STI's double check the fuel pump"sock" in the tank. Oct 24, 2018 · Iv had some issues with my car beginning with the first day It got cold about a week and a half ago. Verify that the throttle body and MAF are clean. Thanks for any info Dec 28, 2015 · I have a 2015 WRX Limited that stage 2 with a pro tune. One day after I picked up my car, the car was idling very rough and low. Test the Aug 6, 2008 · Weird Rough Idle. Where to Start if There’s No Code. Just be careful if you go wot, make sure the afr isnt really lean if you get on the throttle. Apr 14, 2009 · My WRX has had some issues lately. It did this for about 5-10 mins if not linger. I took out the MAF and cleaned it and still did the same. -Catch Cans-COBB AP-Otherwise stock, currently Nov 25, 2012 · Check for a vacuum leak. 5K - 2 rpm and it's very reluctant doing it. I decided to sell it and go buy the sti. Mar 27, 2019 · Mine does this as well, as does a friend's WRX with the same motor. Check for vacuum leaks. I've had my car for close to 3 years now, and for the longest time ever since I started modding the car I've always had a seemingly weak idle which I always attributed either to the mods themselves or a vacuum leak. Nothing extreme, just some slight varying RPMs only during cold start. No mods except for Accessport + Cobb Stage 1 93 oct tune. May 18, 2018 · I can listen to the idle and hear it go from around 800rpm to 500rpm slowly, then I'll hear a thunk and the idle will go back to 800rpm. Now there is a P0171 - System too lean (Bank 1). I spoke with my tuner and we agreed to re-tune the vehicle using the new post-recall ECM type. Oct 24, 2020 · 2015 WRX Whining sound & rough idle on cold start Hey Guys, like the title states I've been noticing for some time when I cold start my car, I notice a high pitched whining sound for about a minute, while it does this the idle is about 1800 RPM. It started with a really rough idle, But after letting it warm up and beginning to drive it around it started running either super rich or lean, getting around 8-10 mpg at best and periodically dying at idle while also having instances of power loss where the engine would bog down and almost Mar 24, 2022 · Australian owner of a 2014 WRX VA (MY15) - (Basically a 2015 ) 170,000KM on the clock. Just put in a Cobb cold air intake and did a stage one plus tune through Cobb access port now I have a rough idle was wondering if it’s the IAC VALVE and is there a way to clean it and where is it located. I was wondering why my brand new car sometimes has what sounds like a slight stutter and feel a little shake in the morning from a cold start once the RMP's drop. Anyone else having this problem. Stock 2015 WRX. Aug 31, 2019 · Here are the most common problems that would cause a Subaru WRX to idle rough. Show more Jun 16, 2016 · I have a 2016 WRX Limited 6MT with about 950 miles on it. It is stock, except for Mishimoto Dual Catch Cans, and some upgraded Breeze (Danoz) clamps on the Intercooler Inlet, Outlet, Throttle Body, and Turbo Inlet. I have 92k miles If you are still under warranty it is unlikely be a dirty valve or injector. RPMs drop, car idles very rough and gas pedal goes unresponsive almost all the time. May 8, 2017 · Reset the ECU to fix rough idle There is a hack for fixing a rough idle, after the battery has been disconnected. I plan on doing some upgrading but I need to figure out this problem first. Apr 12, 2016 · Hey all, as of lately my cold start idle has a been a little rough. If there’s no trouble code, it can be difficult to determine why your WRX is running rough. Some got a reflash of their ECU and the issue went away but some still had the problem. They wanted the car stock so I took off all my parts and put the stock ones on and then unmarried my accesport taking the tune off making it stock. I would guess it might be the im gasket Overview of diagnosing a rough idle on a 2014 WRX premium. Jul 15, 2016 · Rough idle, or weak idle (wanting to die), and random P000A accompanied by intense rough idle. I'm going to bet the reason the STi is only $1k more is because it's using a motor that hasn't significantly changed since 2004, whereas the WRX is using a relatively advanced ( for subaru ) motor. I had intended to see to these issues today but considering I am new to these cars and am new to working on cars in general, I could not locate my throttle body to clean it. Apr 13, 2016 · The cold start Idle is so rough it seems like the engine is about to stall and the exhaust pops like crazy. Jan 31, 2015 · The idle RPM drops to the value in the Idle vs ECT table within a few seconds of startup. Even when I was driving it, coming up to a stop sign same thing. May 1, 2008 · Vac leaks normally result in a high idle if any idle change at all, the system will accomidate for the vac leak by lowering the IAC percentage to get the "wanted" amount of air around the closed throttle plate, now if you have a later WRX w/ electronic throttle a ECU reset and a good cleaning of the TB is about the only obvious things that May 21, 2021 · I recently had my car (2015 wrx)tuned at 300 whp and got a deal I couldn’t refuse. The only thing that changed in the last couple days is that in preparation for the tune, I changed my oil (T6) and oil filter. Sep 26, 2021 · New to this group, I have a 2017 WRX with 2. zqetz dxak vhopza mambpr xewu ydux hvjtnp fclzeic nkqaji jibol