Quote:
Originally Posted by EastCoast335i
Well "so far" i've had two cold starts and no rough idle after pluggin the exhaust flapper valve back in....
I'm gonna keep testing my theory, but i think the exhaust flapper valve is something that our cars need for a smooth idle at startup...
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Let us know how it goes. My car didn't do it every day at first but progressively got worse. Took it in they replaced the fuel pump and did software update. After 2 days it came back with a vengance thats when they finally replaced the injectors. Its just a matter of time with these cars...