Supercharged 2003 Jeep TJ 4.0 Closed Loop to Open Loop Delay Part Throttle

[jeeptjtx]

Has any found the solution to the part throttle closed loop to open loop delay under boost at part throttle for 2003+ 4.0 Jeeps? I no issues at WOT, but it's erratic going from CL to OL at part throttle under boost. I've read about potential work arounds like the SS Fuel Enrichment Module or just running OL full time to get around the issue.

[Omunoz]

post vcm log and tune file

[kennygene]

Sounds like the same issue I'm having with a supercharged 5.7. I've heard it referred to as light switch effect.

[jeeptjtx]

Tune and Log. LTFT taking away fuel until OL. Additional info, still running stock 1 bar MAP and injectors. I have the SS FTC1 piggyback for the 7th injector and timing retard.

[Omunoz]

try setting your CL Disable Rpm lower around 2k rpm and go from there, if you run ss controller, disconnect your battery every time you make changes, FYI the oem computer is going to relearn every time.