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      11-09-2013, 06:18 PM   #939
Dackelone
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Drives: N54 e82
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Quote:
Originally Posted by FROtuning View Post
vanos solenoids were cleaned (both) per his description. the code indicates timing is off, so i'm not sure how injectors or carbon build up would play a role there. not bad ideas for any cars though
IF you got a code for the vanos sensors... cleaning them will not help. You must replace them both. They typically fail. Some suggest due to long oil change intervals. The sensors are relatively cheap at around $120 each.

Did you use BMW bought spark plugs? Many people buy OEM aftermarket plugs and experience a misfire. And new plugs are cheap-er than new injectors!

Carbon buildup is a big problem on our cars. The carbon dries up over night and will act like a sponge when you first start the car. All that carbon can cause a misfire also. But I have not heard of case where it would cause a problem on cold start. I still suspect either a bad plug or vanos sensor(s).

What codes keep coming back? You need to start there.
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