can someone look at this tune please
can someone look at this tune please Went to the track today not happy with the runs I went 13.1 s three runs just think it should be better .I am getting knock retard and AFR was lean in log posted when I unplugged the maf AFR was 12 to 12.4 no log for that one Car is stock except yank 3600 ,slp lid ,3.73 gears,TSP long tubes and ORY any help would be appreciated
Last edited by 2000 TA owner; Sep 20, 2015 at 12:38 PM.
Went to the track today not happy with the runs I went 13.1 s three runs just think it should be better .I am getting knock retard and AFR was lean in log posted when I unplugged the maf AFR was 12 to 12.4 no log for that one Car is stock except yank 3600 ,slp lid ,3.73 gears any help would be appreciated
This is the run
It did correct it too 12.7 with good air but the 60 is what bothers me the most
I have a mail order tune by LSX tuning but seems they didn't adjust maf in the hz range that I am running at WOT but unplugged it afrs in the low 12 range maf plugged in lean like 13/13.5 yea gonna look into it just have to do alittle more reading is this like the ve table higher # means more fuel
Make sure the MAF is clean. (the 3 wires running across it) Disassemble it (4 screws) if it still has a screen and spray the wires with Berryman B12 spray carb and choke cleaner. Dynamic Airflow High RPM Disable is set to 4000 so from 4000 RPM and higher the tune is 100% MAF, not using the VE table. Now with the MAF unplugged and setting a MAF code it is using the VE table 100% at all RPMs. Yes bigger VE numbers means more air so the PCM calculates more fuel. Same for the MAF table numbers.
Last edited by 2xLS1; Sep 21, 2015 at 09:25 PM.
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I have a mail order tune by LSX tuning but seems they didn't adjust maf in the hz range that I am running at WOT but unplugged it afrs in the low 12 range maf plugged in lean like 13/13.5 yea gonna look into it just have to do alittle more reading is this like the ve table higher # means more fuel
With any mailorder tune, no matter who does it, you always have to check your WOT afr because its impossible to get everyone right through mail order without data logs.
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Verdad Gallardo thankyou LSX I do have the Maf err vs AFR and it is showing that it is off by 3 to 5% Imultiplied that area by 3% my run ranges from around 7300 to 9500HZ thankyou again for the response and it has a brand new ac delco maf and thankyou also 2Xls1. I want to learn how to do this myself as much as possible