Misfire Issue

[01gpgt01]

I just got my HP tuner yesterday, I have a 01 gpgt with a zzp m-90 blower kit, ZZp flashed my Pcm. Ive been fighting very high injector pulsewidths @high rpms with a nasty misfire only under WOT and boost @around 5,500 rpms, At the same time I hit over 100percent IDC. This has been a issue since day one of this kit. It usually occurs at the top of third gear. Mods are GTP injectors, l36 stock TB, zzp fuel rails and rising rate Regulator, Intake, ported m-90 and lower intake mani, 3inch downpipe, 180degree t stat 4.0 pulley(5psi). ZZP has said that they may have flashed for a 2 bar maf and since im running the stock gt 1 bar that may be the cause of the high IPW's. Its not plug/wire/coil/injector related I think its all in the tune. Anyone care to take the time and help me figure this out. Much thanks Ive yet to scan with my tuner but I have a log at http://www.scandepot.net/viewscan.php?pk=4989

[eclipse5302]

Why are you still running a 1 bar map? If you've got a 2 bar calibration you should have a 2 bar map...

[01gpgt01]

Problem Was fixed, I selected the incorrect year On the drop down menu when I originally did the M90 SS kit so they flashed for a 2000 gp instead of a 01.ZZp sent me a good vin/OS I reflashed my PCM, All misfires gone, And the car runs so much better. IPW's around 16 IDC under 78 percent, 0KNOCK,, LFTS are a tad lean positive 13 But there still in the relearn process. 940 02s.I ll only have to make slight adjustments. Time to drop some pulleys! ZZP Came thru for me

[louvered97gtp]

positive 13 is not a tad lean, being that your correction will stop at 16. time to get cracking on those fuel trims!

[01gpgt01]

I added 3 percent to the maff Hz, Lfts range from -1 to positive 3 idle its around 11 though, My 02's under WOT seem to drop down as rpms increases from 930 to 880 I made a thread about.