2011 Raptor roush Supercharger and Headers

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

hello
nobody has issues with the LTFT?
tnx!!!
bye

I do not have my laptop with me right now to look at the log, but are you watching the correct pid? I have never seen that issue with a Roush cal. That being said, the Roush cals used to do funning things if you tried to change them. Maybe you are best copying over all your values to a stock file and then flashing it. We ran into this using the Roush Cals with SCT. Change one thing and they would suddenly have a 4000rpm rev limiter, or go into failsafe for no reason.

try to return every thing to stock then try since the roush stock tune do strange things such the one you have when you make changes

just flash the roush cal with out any changes and update us here so we can see what is going on.

the LTFT will not act if the STFT are add/remove small % fuel as you have.

please log the spark, fuel, torque sources as well.

good luck.

Omarain.