I had a similar issue on my Godzilla swap and a friend recommended with the engine off and ignition on that I hold down the throttle pedal for 10-15...
Went for a drive and repeated this process and now all my long term fuel trim values are single digit numbers that seem far more reasonable. It does...
Wow! That reminds me of when I had a "wiring specialist" cut down a factory harness for my personal 1998 GMC Reg. Cab that my father and I, had put a...