Ok, so I've had a issue I've been dealing with on the SSEi.
Problem comes around when I hit boost. I had a leaky fuel line and replaced it and the plugs at the same time. Thought it'd fix the problem -nope.
With the Tech 2 hooked up I checked the misfire history, current count and graphs and all indicate 0 misfires.
My STFT's are range from -3 to +3.
LTFT's are maxxed out at idle and go down to +8 under WOT.
o2's are good and sometimes read rich (935-955mv).
Timing is set at a modest 11* and I don't have any KR.
I've sprayed every gasket and vacuum line with brake cleaner checking for leaks and found none.
New AL104's gapped @ .055".
Plug wires were changed last fall with new 8mm Belden Max from NAPA.
No exhaust leaks.
It almost sounds like the MAF is peaking out (ZZP stage 1 TB w/TB spacer) but that doesn't seem right considering I'm only running a 3.6" SC pulley.
Mods to the car:
3.6"
ceramic coated front PEM
3" mandrel bent DP, no cat, 3" hi flow resonator, 3" mandrel bent pipe all the way to rear wheels where it drops to 2.5" to the F-body Borla crossflow muffler (3" inlet dual 2.5" outlets).
(2 pcm's) ZZP 1.0 and ZZP 1.0 tweaked timing down to 11* for testing, and 195* t-stat and fan settings. ***Heavy stutter is evident with both pcm's***
Alt rewire.
Anyone have any clue what might be causing this?
I can log a scan from both PCM's with the DHP but it may not be until mid next week as I have to finish the motor/trans swap in the GTP, paint the GTP and get it to Nashville by Thursday, where I'll be until Monday or Tuesday of next week.
Any help chasing down this pesky stutter since early last summer would rock (before the TB spacer and ZZP TB -I also had an Intense 3.5" FWI, 180*, and ZZP UDWP pulley last summer with these issues).
I really want to get one or two more track runs in before I sell the car since I ran a few 13.8's with a 3.4" before the TB spacer and ported TB and feel I can pull off a quicker run or two now if I can get the stutter cleared out.
