brayden Posted June 22, 2013 Report Share Posted June 22, 2013 I have an issue where if my idle is lowered to pretty much anything under 1500rpm the car will idle lumpy and also causes it to back fire constantly on de accleration. The car has an aftermarket intake with a 90mm Throttle body using a non sprung nissan TPS. I have tried calerbrating the TPS as stated in start up instructions but does not seem to change this. Can any one help? Thanks in advance Quote Link to comment Share on other sites More sharing options...
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