JackyBoi Posted June 13, 2015 Share Posted June 13, 2015 Today me and my friend were taking the Supra out for a drive and he said that just after letting go of the throttle after a pull my exhaust would spit either a flame or a big puff of black smoke... So I was curious as to what this black smoke is? Is it just unburnt fuel or is it something more serious than this which I should get checked out ASAP? Thanks guys Quote Link to comment Share on other sites More sharing options...
Lee_e Posted June 13, 2015 Share Posted June 13, 2015 I think black smoke is OK. . It's blue or white ish smoke that you want to worry about ..iirc. Quote Link to comment Share on other sites More sharing options...
paulj1 Posted June 13, 2015 Share Posted June 13, 2015 Unburnt fuel I would think Quote Link to comment Share on other sites More sharing options...
Big Supes Posted June 13, 2015 Share Posted June 13, 2015 Its just unburnt fuel from the split second delay from your TPS. I wouldn't worry about it unless the car is experiencing other symptoms. Quote Link to comment Share on other sites More sharing options...
Dnk Posted June 13, 2015 Share Posted June 13, 2015 (edited) It's a rich fuel mixture, basically not enough air in the combustion chamber hence you burning more petrol hence the black smoke. It's not unburnt fuel Edited June 14, 2015 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
JackyBoi Posted June 13, 2015 Author Share Posted June 13, 2015 Okay all very useful - so nothing to worry about for now thanks guys!! Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted June 13, 2015 Share Posted June 13, 2015 Safety fuelling. My GTR kicks loads of soot out the back, annoying but necessary Quote Link to comment Share on other sites More sharing options...
paulj1 Posted June 13, 2015 Share Posted June 13, 2015 JackyBoi said: Okay all very useful - so nothing to worry about for now thanks guys!! As long as you own a prius to counter act your carbon footprint you can sleep easy my friend Quote Link to comment Share on other sites More sharing options...
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