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Old 08-01-2011, 12:45 PM   #1
EXNoodle
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Join Date: Mar 2006
Location: Albany, NY
Posts: 151
My Ride: 330CI
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Start-up idle issues

Did a lot of searching and could not find a fix for my idle issue.

It only occurs at start-up only, but randomly, regardless if the engine is warm or not.

At startup, this is what happens:
-Engine will not start
-Push on the gas while turning the key & engine will startup, but idle rough feeling like its running on half the cylinders. A srong smell of gas comes out of the tial pipe as well.
-Push on the gas again for a second, the engine reves up to 1500 rpm's and the idle corrects itself and runs smooth with no further issues.

I am thinking it is not a lack of gas, or spark, rather an issue of air at start-up. I have a hunch its the ICV or Throttle position sensor on the throttle body.

I have already done my Vanos, CCV upgrade, fuel filter, spark plugs, cleaned my MAF, DISA & ICV. I have a 117K on the car.


Anyone have any ideas on how to trouble shoot to determine what is causing the porblem?

Thanks you all in advance for your input!
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