ok....so tonight i tried writing my PCM for the 1st time.... i was scared to death of something going wrong and f**king up my PCM cause my laptop is 7 years old. But all went well..... it wrote the PCM perfictly fine no problems.

Anyways. So I did a little tweaking to my PCM. I tried that MAF tune table adjuster, and lowered my AF ratios to 11.5 from 11.7...cause i wasnt getting enough fuel. My LTFT's now seem to be alot closer to where they should be now at about 0.7 or so..... vs. the old 4.31 where it was.

The car definately feels alot more responsive now, but im STILL seeing spikes of KR up to 7-9* when i punch it from a roll. If i manually put it down to 2nd....and punch it, the highest i saw was like 2.8* or something.

I'm kinda stuck here. I'm going to be ordering a 3.5'' pulley to replace my 3.4'', but its obviously not the pulley if theres a difference of 7* or so in knock if i just punch it and it has to downshift vs. if i manually put it into 2nd and punch it. or is there???

Opinoins???

_________________

-2000 Grand Prix GTP 13.341 @ 102.62
-2003 Grand Prix GT (daily driver)
1991 Grand Prix GTP Getrag 284 5 speed 1 of 787 5 speeds in 91. 15.221 @ 92.46

Post scans and a .bin. Sounds like there are some things to worry about.

_________________
One Big Ass Mistake America

Alright....I'll do that tonight on my way home from work.

_________________

-2000 Grand Prix GTP 13.341 @ 102.62
-2003 Grand Prix GT (daily driver)
1991 Grand Prix GTP Getrag 284 5 speed 1 of 787 5 speeds in 91. 15.221 @ 92.46

Heres the scan from tonight. It was a nice cool night. Most of this was driving down I-75...but I opened her up a few times to show you that sometimes the KR is spiking up, and sometimes it doesnt.

http://www.scandepot.net/viewscan.php?pk=5953

I dont know how to post my .bin file on here.... it wont let me.

_________________

-2000 Grand Prix GTP 13.341 @ 102.62
-2003 Grand Prix GT (daily driver)
1991 Grand Prix GTP Getrag 284 5 speed 1 of 787 5 speeds in 91. 15.221 @ 92.46

It would appear that you are lean. O2 levels in the 880s is a smidge low. It is definitely pulling a lot of timing, leaving you little. Download Eddies ScanData Thingy and it can help you...a lot.

_________________
One Big Ass Mistake America

I actually did use that for the tune I have right now......

_________________

-2000 Grand Prix GTP 13.341 @ 102.62
-2003 Grand Prix GT (daily driver)
1991 Grand Prix GTP Getrag 284 5 speed 1 of 787 5 speeds in 91. 15.221 @ 92.46

Scanpost linky is no worky

_________________
Best 60' = 1.716
Best ET = 12.186
Best MPH = 112.98

i have a new scan that I took the other day just after replacing the O2 sensor....I'll post it tomorrow evening... and i'm gunna try re-tuning the MAF again now that I got a new O2.

_________________

-2000 Grand Prix GTP 13.341 @ 102.62
-2003 Grand Prix GT (daily driver)
1991 Grand Prix GTP Getrag 284 5 speed 1 of 787 5 speeds in 91. 15.221 @ 92.46

I'm having problems getting into scandepot.net myself.....i dont know what the deal is....but until then I cannot get my newer scan on there to do a new MAF tune.

_________________

-2000 Grand Prix GTP 13.341 @ 102.62
-2003 Grand Prix GT (daily driver)
1991 Grand Prix GTP Getrag 284 5 speed 1 of 787 5 speeds in 91. 15.221 @ 92.46