01-26-2013, 03:55 AM
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Black Squared
Location: Western Germany
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Join Date: Apr 2008
Posts: 421
Mein Auto: 1998 535 COSMOSSCHWARZ ME
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Quote:
Originally Posted by E39project
She runs really rough on a cold start
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Mine did the same, ran a couple cans of this through it and all was much better. http://www.berrymanproducts.com/prod...an-up-t-f-s-c/
Of course I did the air filter, oil change, and spark plugs first. Even did the VCGs and upper timing chain cover gaskets. Throw the CCV in for good measure. Still think the fuel system cleaner did the most towards smoothing the cold start. I figure the fuel injectors had crappy spray patterns which caused the cold start symptoms.
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