Autodream1436215442 Posted January 14, 2009 Report Share Posted January 14, 2009 Hi everyone I have this problem and I can't think of what can cause it, this happens on a VG30DETT and a RB26DETT under low boost seem to be fine so I increase my duty cycle in my boost map 95% of the time the car will pull nice no misfire no knock but as soon as it get above 6000 rpm the boost drop flat then it will build boost again there are times that it pull through to 8000rpm. I have gone over the log many many time to see if any significant changes in the log. AFR stays nice and flat and not hitting any limit. boost come on strong some one please tell me they have the same problem. its driving me crazzy. Quote Link to comment Share on other sites More sharing options...
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