So this has been going on for a while but I’ve been busy to get it checked out because of travels. My 2015 STI engine has been shaking on idle. They’re not any crazy harsh shakes but it’s noticeable. It’s always random, but happens most of the time. I notice the boost gauge would fluctuate on idle at -10.02 then drops to -9.20 and back up to -10.02, the lowest will be -8.00 (this is when the engine really shakes). Sometimes it will stay at a solid -10.00 with no shakes on idle. During these light shakes, RPM would drop from lets say 900 to 700, shoot back up to 1k and back to normal between 900-800. Driving is fine, no issues whatsoever. Access port reports no bad numbers whatsoever. Only engine mods I have is Cobb Intake, Downpipe, Exhaust, AOS with a tune. The car is at 27k right now, tuned was done at 11k.
Any tips would be appreciated.
Any tips would be appreciated.
