If this doesn't fix it I give up

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Oct 5, 2009 | 08:49 PM

#111

BlackGMC

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From: Fort Worth - TX

Quote:

Originally Posted by GMCtrk

Because this isn't a LQ4 engine. It's a LQ9 with ported heads and higher compression running on a modified LQ4 tune. It's possible that the fueling is off, but I find this highly unlikely because I've had KR on those logs when the o2s are reading above .900mV

comanding 12.0 is a hell of alot richer than 880mv.... it should be in the 950s or higher....

Oct 5, 2009 | 08:55 PM

#112

GMCtrk

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I'm not sure what to say to that. Other fueling tables may be off. I don't think you can really go off the commanded AFR table as gospel

Oct 5, 2009 | 08:58 PM

#113

GMCtrk

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So things to consider:

1)Wideband
2)fuel pressure gauge

Oct 5, 2009 | 09:01 PM

#114

nonnieselman

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From: Crystal Springs, MS

would you atleast listen to corey, or just quit..
You dont know your fuel pressure, AFR, or anything. So your chasing a dead end trail without actually knowing whats goin on..

Atleast get a wideband.

Oct 5, 2009 | 09:02 PM

#115

nonnieselman

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From: Crystal Springs, MS

Things to get:
Wideband

Oct 5, 2009 | 09:03 PM

#116

GMCtrk

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From: Dallas

you homo

Oct 5, 2009 | 09:07 PM

#117

nonnieselman

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From: Crystal Springs, MS

im just saying...

corey told you stuff to try... go try it and he can help you more,, or go get a freakin wideband.

Oct 5, 2009 | 09:08 PM

#118

GMCtrk

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Oct 5, 2009 | 09:09 PM

#119

BlackGMC

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From: Fort Worth - TX

Quote:

Originally Posted by GMCtrk

I'm not sure what to say to that. Other fueling tables may be off. I don't think you can really go off the commanded AFR table as gospel

If you tune is correct, commanded = Actual.... NOW that is Gospel...

Also looking over you tune and comparing it to stock the MAF table has been increased by 5% in the 0-5000hz and 15% from 5000-12000hz...

Looking at my current tune compared to stock the largest difference in the entire table is about 3-5% and mine is calibrated with a wideband (i was kinda shocked when i saw that, strange huh)....

BTW you can forget increasing your MAF to try and compensate... IMO you have delivery issues... Another clue is your running stock injectors with only a 93% IDC....