Need help with peramaters for 2k7 sierra 5.3 afm non-flex

Predator support for GM gas vehicles

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WFOsierra
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Post by WFOsierra »

My average lift in bank 1 is -0.45210% and my afr ratio stayed at 14.75 so that is right on the money for a 65mph cruise log.?
i used the DSlogRedux and it says : no wot tksr is logged but it needs to be loged, whats tksr?
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06MonteSS
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Post by 06MonteSS »

TKSR = Total Knock Spark Retard

yeah, if your average ltft's are at -0.45, then you're golden there... now do another log with a good WOT run in there and let's take a look at that...
06MonteSS / DiabLew Tune
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WFOsierra
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Post by WFOsierra »

done a wide open throttle log and the results are as followed
avg lift bank 1: 0.07813
afr: 11.95
o2 bank1 sens 1: .88427

But it says on the recommended adjustments tabs to adjust the injector slope down 1% to -1%
all this look right?
i used the dslogredux by the way which is awsome
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06MonteSS
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Post by 06MonteSS »

"i used the dslogredux by the way which is awsome" Nice!! cool, thanks for the good words man!!

if your normal cruise/driving average ltft's are still at -0.45, that's right on the line of the algorithm we used for calculations... going down another -1% to make it a total of -1.45 will not be a problem. if you want to, you can - if the average is still -0.45, you can leave it. but if the average ltft for normal driving/cruise is 0.07813, then yeah, go down -1%.

as for the WOT AFR... have you adjusted the PE at all yet?

if not, and the average ltft's ARE dialed in to the 0 to -2 range, then we can lean out the PE (WOT) fueling... I would adjust both PE (WOT) rpm ranges to -5%.

what are your current settings at?
06MonteSS / DiabLew Tune
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2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
WFOsierra
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Post by WFOsierra »

my fuel trim is at -3 after going down 1% and my PE setting are on zera
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06MonteSS
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Post by 06MonteSS »

ok, if your average ltft's are at -3 with the slope adjusted to -1%, then I would adjust your slope back to 0 (zero)

also, after ANY slope adjustments, you need to drive for 40-50 miles to let the adjustment settle in and get relearned by the ECM before doing another data log/real time data run....
06MonteSS / DiabLew Tune
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2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
WFOsierra
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Post by WFOsierra »

my fuel trim went from a 0.07 to a -0.04 when i adjusted the fuel trim down 1%. Now my trim settin on the predator ison -3. the afr reading at wide open throttle drops from 14.5 down to about 11.5 to 11.9 avarage.
craigffb
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RE: Re: RE: One more thing...

Post by craigffb »

I'm having the same problem. I had to get a new cable when my old PC went down. Now my PC is Vista and an laptop is XP and I cant get the cable to work with either one. When I try to use any of the DS programs it wont detect them they just say scanning and the data viewer never even detects a hand held is connected. The computers detect the cable, I would have to plug it up again to tel you what its saying cause I'm getting old and can't remember. So now what??? Anyone have any ideals?
CANUCKPREDATOR
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RE: Re: RE: One more thing...

Post by CANUCKPREDATOR »

Try some where other than Radio Crap. There are Vista compatible cables out there, just read the package or ask the geek behind the counter. :shock:
sickREDsierra
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Post by sickREDsierra »

WFOsierra wrote:my fuel trim went from a 0.07 to a -0.04 when i adjusted the fuel trim down 1%. Now my trim settin on the predator ison -3. the afr reading at wide open throttle drops from 14.5 down to about 11.5 to 11.9 avarage.
you want around 12.6-12.8 at WOT for AFR.

you are a bit rich at 11.5....it will pick it up a bit if you lean it out my friend.
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