Ok, I have had a rough idle at start-up for the past 6-8 months.
I have done the following, it has helped, but it has not gone away yet:
-CCV (cold weather kit)
-Vanos seals, valve cover, cleaned ICV, cleanded MAF
Here is the current symptom:
At cold starts, I turn the key. The engine takes a bit longer to turn on, once on, it immediately goes into a rough 300-500 rpm idle. The second I tap the gas, the engine fixes itself and idles smoothly for the rest of the ride.
No fault codes on the PEAKE tool...
I have 88K on the car.
Anyone else have this issue, and if so, how did you fix it?
Gray 2004 330CI ZHP