New to tuning, working on the VE table for my 2005 Jeep Wrangler 2.4 turbo. It is set up to make 5 psi boost maximum, so I am tuning it closed loop based off the LTFT until my wideband arrives.
So far the thing runs fine, working out the VE table still, but the computer keeps it stoich in closed loop. I figure 5 psi at stoich won't cause any issues with 93 octane and retarded timing. I can drive it around, shift through all the gears, and get up to speed, but if I try to get it up to 4000ish RPM, it sort of sputters and hits a wall, won't go any faster. It feels sort of like the limp mode kicking in. I had a code p2074 for MAP/TPS correlation being off that I disabled because obviously the ECU does not expect 15 psia at part throttle and I figured that was throwing the code. I wonder if disabling the code forced a limp mode above 3900 RPM or something. Another possibility is too little spark advance, but you can look at my base tables and data log and it doesn't really drop off and knock sensors don't kick on at all. Does anyone have any ideas? Most recent tune and data log are attached, feel free to peruse.
2005 Jeep Wrangler SE 2.4_edit_2.4.hptJeep Log 5.hpl