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Anyone seen this OS in a 2005 gto? 12598977 I found that it's a os for a hsv clubsport. Not sure what the stock file should be any suggestions? Go back to a GTO os or use the clubsport. I'm having...

LABELS MAF Sensor Calibration (Grams/Second)
Hz {link: GM.MAFFREQ} Value
1500 2.320313
1625 2.695313
1750 3.148438
1875 3.648438
2000 4.164063
2125 4.726563
2250 5.359375
2375 6.054688

Yes that's what i pulled out of it. I still think his pcm has a bug wierd. It wouldn't connect several times and did some weird stuff to the bcm once.

LABELS MAF Sensor Calibration (Grams/Second)
Hz {link: GM.MAFFREQ} Value
1500 2.704595
1625 3.142482
1750 3.614713
1875 4.138460
2000 4.722309
2125 5.374846
2250 6.087486
2375 6.868813

Yes start with that. Desired airflow may also be too high as ute said. I forget about that table sometimes.

Just bring it down by a small %. Or attach your file and someone can take a look to see...

Yes they have generic tunes. or they just pull segments out of a good tune they've done.
They in most cases tune ltft's to 0 or close with their IFR tables.
I've worked at big shops that won't do...

Will it start after it sits awhile?
Do you have any logs?
Do you have a wbo2 in the car?
Have you checked fuel pressure?

Throttle cracker is most likely the culprit but ve can effect this also. But it would have to be wayyyy off.

I'm waiting on a null connector. I'm going to wait until I get it to try tuning again. Does the tune look like a decent base? Are my injector settings in order for 60's?

I have so much time into...

http://forum.efilive.com/showthread.php?4335-Updating-FlashScan-V2-Firmware

try this

Sounds like it's in dead pole. open v8 software and it should tell you to update bootblock

Can you look at this tune for me? I'm getting killed by my first FI tune. Car has 6.0 lq9 aps twins 60# inj 231/237 cam on a 114 I can't get it to do anything but idle it starts breaking up really...

Okay try this

Oh crap I changed my pcm I forgot about that sry not sure what to do then. Trying to come up with another idea for ya. All the 1mb stuff had Throttle by wire as far as I know hmmmmm let me think...

Or try this tune in it. Just try it and see if it still has the second gear issue. It has all stock spark and ve tables from a 04 gto. I has the theft system disabled.

Are you using the tcs box deal that came with the 04 gto's I can't remember but I think it has a second weird computer the throttle cable came through. I had the same kind of issue with it my 04 when...

Is this article out yet?? I've been laying low too low since the economy has sunk me in a pit I can't crawl out of. Had to cancel all my mags. But I'd love to read it.

As for a ground issue I never found one either but had that thought on the last one I tuned. I even went tried tuning it with hptuners without any difference.
And ya I have ls1edit too lmao

I've had this same problem with 97/98 pcm's and have never got it figured out. I just ended up shutting off stft at lower rpm levels. I wish I had a better answer for you.

cummins ok did you change the cells joecar said to and try the tune yet?

I just had a bad 01 pcm so it kinda sounds you have the same problem. For a NEW OS look at the tutorial. Flash the 99 pcm with the 01 cals and see if the tach works would be another way to test this.

I tried to fix some of it give this a try.

Ahh found a stock tune on www.holdencrazy.com under 06 siearra

v7.5 I have auto updates not sure if it's the newest though i guess. I didn't get too far into the tune just looked at some of the tables. Looked like some kind of mess. It would be nice to compare...

Ahh yes overlooked that. What settings did you have in it before you switched the pcm. I guess switch the pcm's back and see if the tach works would be the easiest check. Why didn't you just reflash...