hawwy 0 Posted December 27, 2011 Report Share Posted December 27, 2011 Hii have a mk2 vr. It has 6 branch manifold.Decat full straight through exhaust.And when i put my foot down it lets out black smoke and quite a bit of it too. So what can be the problem Link to post Share on other sites
b road blaster 0 Posted December 27, 2011 Report Share Posted December 27, 2011 black smoke is normaly overfueling blue is normaly oil and white is normaly head gasket Link to post Share on other sites
legvw 0 Posted December 27, 2011 Report Share Posted December 27, 2011 Running rich by the sounds of it. Is your lambda ok? Are you running the correct fpr? Any other mods like a re-map? Link to post Share on other sites
hawwy 0 Posted December 27, 2011 Author Report Share Posted December 27, 2011 How do i knoe ifi in runnig correct fuel pressure reg? And im not sure about lambda. And yes it smells of fuel a bit . Also im not sure about if it got remap .Cheers Link to post Share on other sites
legvw 0 Posted December 27, 2011 Report Share Posted December 27, 2011 Do you know what set up you have? I.e obd1 or 2? Also, try unplugging the lambda to see if it makes any difference. Could be the maf at fault too, so try the same diagnosis. Link to post Share on other sites
hawwy 0 Posted December 27, 2011 Author Report Share Posted December 27, 2011 i have obd2, no diagnostic port will have to get 1 anyway and wire it in..maf isnt connected but with it connected same problem.il try unplugging lambda if i can reach it from engine bay. will it make a difference you thinkcheers Link to post Share on other sites
legvw 0 Posted December 27, 2011 Report Share Posted December 27, 2011 You should really be using the maf, that might be your problem. Link to post Share on other sites
craggsy 91 Posted December 27, 2011 Report Share Posted December 27, 2011 MAF will be a problem if its the same connected.FPR should be a 3bar one unless mapped different Link to post Share on other sites
hawwy 0 Posted December 27, 2011 Author Report Share Posted December 27, 2011 How do i know if fpr is 3 bar? Its standard one. Link to post Share on other sites
craggsy 91 Posted December 27, 2011 Report Share Posted December 27, 2011 It will say it on the side. But if its standard then it will be the correct one Link to post Share on other sites
hawwy 0 Posted January 6, 2012 Author Report Share Posted January 6, 2012 Tried maf same problem any help Link to post Share on other sites
rodney 17 Posted January 6, 2012 Report Share Posted January 6, 2012 Sorry just for clarity... you had no change when it was plugged in and unplugged? Link to post Share on other sites
hawwy 0 Posted January 6, 2012 Author Report Share Posted January 6, 2012 Well the wire for maf plug was broke sorted it and just smokes a little less greyish smoke bot black now? I got new leads plugs etc Link to post Share on other sites
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