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Old 09-25-2011, 02:19 AM
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Originally Posted by cudablack2004
hey wats up guys! This problem only occurs in the morning when the engine is cold...when i start my car its blows a lil bit of white smoke smells kinda rich and sometimes it doesnt! once i get it to maybe 160 degrees and put it in drive or reverse and give a slight bit of gas to move the car it hesitates very bad and almost cut off then picks up and go and after that i have no problems once again its a 305 tbi with flowmaster exhaust no cats
The place to start is to look carefully for any possible vacuum leaks. If the O2 sensor "sees" excess O2 in the exhaust it will richen the a/f mixture to compensate. I'd also say to check for any computer codes that may be stored- even though there's not currently a check engine light on.
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