Cool Vw Rough Idle Check Engine Light 2023. Web the most common cause of rough idle in volkswagen vehicles is misfiring. Got new spark plugs and coil packs and car run great back again.
Got 5 blocks, was sitting at a light and suddenly the idle goes from smooth as silk to decidedly rough. No codes, no check engine lights and i have not been able to duplicate when i have live data running on it. Check engine light (cel) illuminating;
