tenside Posted January 14, 2014 Share Posted January 14, 2014 Hi Guys I've tried searching but never got a conclusive answer. I've just recently decatted my exhaust and changed the downpipe but my supra still boosts to 0.7 bar. Im not reaching fuel cut. What could be the issue? Thanks Link to comment Share on other sites More sharing options...
mellonman Posted January 14, 2014 Share Posted January 14, 2014 do you have a cat back system? as if you still have a stock exhaust that will be the issue also it might be best if you look up bpu and it will show what needed to be done Link to comment Share on other sites More sharing options...
tenside Posted January 14, 2014 Author Share Posted January 14, 2014 Its a full exhaust..no cats in place. Link to comment Share on other sites More sharing options...
supra_ufo Posted January 14, 2014 Share Posted January 14, 2014 I created a thread in technical, have a read of that it might help you. Basically your VSV sounds like its partially working..... Link to comment Share on other sites More sharing options...
mellonman Posted January 14, 2014 Share Posted January 14, 2014 and his gone lol Link to comment Share on other sites More sharing options...
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