Original owner of a 1999 GTP with 122,500 miles. Had the phantom stalling issue the past few years and threw new sensors at it the few times I returned home. Replaced the MAF in December and drove it hard for the first time in awhile. Immediately noticed power hesitation and misfiring at moderate acceleration (~60% TPS). This was repeatable as seen in the first log.
Should the engine be cutting power so much with low KR? And how is it possible for the MAF reading to decay to 0 Hz? The thing is, I'm certain I've had KR in the past since I went to a 3.4" pulley many years ago with only a CAI as a supporting mod. Yet no power hesitation or misfiring until recently.
Mods
LS7 hyd lifters @ 121,860 miles
Front stainless powerlog @ 120,649
Wizaired CAI @ ~100,000
ZZP 3" downpipe @ 95,00
Front powerlog @ 82,000
Alternator voltage booster @ ??
GMPP 2.5" catback exhaust @ 61,928
180 tstat @ 51,700
3.4" pulley @ 40,666
MSP CAI @ 12,291 miles