Possibly an exhaust leak the headers are know for cracking and backing the drivers side bolts out (the car has 30,000 miles)the rpms shoot up a bit and drop back down to normal. See common causes of rough idle in your subaru wrx sti, like vacuum leaks and spark plug issues
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Do wrx’s have a rough idle in general or should i be worried
It’s my first winter with my 2020 wrx and i’ve been experiencing a rough idle on start Almost like the engine is hunting while cold starting. The car would start and run fine on a cold start, but hesitate to stay started for the first 30 seconds after warming up and trying to start again Explore common causes, owner feedback, and recall insights on subaru wrx idle problems to keep your vehicle running smoothly.
Has anyone had rough idling issues started it for work this morning and it ran perfectly fine When i started it to leave work it sounded really rough. In this video josh explains the 4 most common causes for rough idling as well as a few other less common culprits He walks through step by step how to figure out and fix what's causing your car.
It’s normal for the idle to move around a little bit
The computer is constantly adjusting the idle speed based on a bunch of different factors 2004 jdm wrx with ej20x and haltech platinum pro (swapped to wrx cams and cam sensors) after swapping to the wrx cams and reluctor cam sensors. A couple months ago i started to notice a rough idle when the car comes to a complete stop
