I am not sure why my car is running lean maybe you guys can help me out with this problem. My setup is jdm b16 stock bottom end, pte sc61, inline pro manifold, 600hp intercooler 580cc injectors, walbro 255lph intank fuel pump, tial wastegate running 5psi. I am running the vafc hack and my settings are -22 for idle -30 for low throttle. High throttle settings ranges from -14 and as rich to -6 from 6000-9000 rpm. When I pull my plugs they look white. I am not sure why my car is running this lean. My garbage autometer gauage is showing rich but the spark plugs are telling me I am lean. I know I need to put the car on the dyno, but I would like to street tune the car as close as I can. Thanks

 

spend all that money on a great turbo, good intercooler adn some expensive injectors, to run a vfac hack? I would drop back and punt and rething your fuel mag. before going any further

Also loose the autometer gauge and get a wideband or hit a dyno

 

agree ^^

 

I agree I was using uberdata before and I don't know why the hell I changed back to this vafc hack. I am going to bring the car to titan with the uberdata and let them tune it.