hello guys
I'm working on this truck
it has roush superchargers and HOOK headers.
I've two issues.
I never see the LTFT working. they're always stuck to zero! the STFT works regurarly
it's not a issue with scan tool, the same is with OEM IDS Ford scan tool.
also, when you stop the car, idle drop to 450 RPM and spark down to -2? or so.
the engine very rarely stall, but I don't like this condition
I'm starting over a Roush OEM calibration
Any good idea how to fix it???
thank you so much!!!
best regards