STFT LTFT way in the negatives even with dsmchip?
I have a vr4 pump, PTE 780cc and a dsmchip that is programmed for 780's that I have. When I am cruising my STFT, and LTFT seem to be way in the negative. The car does a lot of popping through the exhaust and I can't seem to figure out the problem? Could it be that my stock fpr is going bad or being overrun? But I have heard the stock fpr is fine with the vr4 pump?
Any help would be great. Thanks
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Ryuto
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