os 594, There are 6 or 8 of these tables. I noticed that some of these have a different vertical scale than others. Is this intentional? All go from 0-120 fuel, but they are graduated differently.
os 594, There are 6 or 8 of these tables. I noticed that some of these have a different vertical scale than others. Is this intentional? All go from 0-120 fuel, but they are graduated differently.
Last edited by killerbee; January 19th, 2010 at 12:08 PM.
Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
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This is the scaling in the tune, not sure why GM chose those breakpoints, they changed again in the LMM from memory.
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B2210-B2215
B2215 has a lone wolf vertical scale, different from the rest.
Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
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DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
EFILive's first VGT "Software Wastegate Tune"
ok, now I know the one you mean. I don't have an answer as to why GM (Bosch) chose to make this table different to all the others doing a similar function. But the table size is defined in the calibrations as 16x16, not the normal 23x23.
Cheers,
Ross
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While on this topic, I am having a real struggle with boost. From what I can assess, I am getting a vane position command, not a boost command. I can depress the pedal, and vane will rise, and stay right at, say 50%. No modulation, flat line. I would expect the vane pos to be all over the place working the boost set point, and that is not happening. The boost will rise, slowly, in response.
The end result is high boost, and eq ratio sometimes below 0.6 on accelerations. That's clear cut overboost for tuning purposes.
Any ideas? B2231 and B2232 do not appear to be in play here.
Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
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DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
EFILive's first VGT "Software Wastegate Tune"
Shows what i am talking about. Constant vane ops, as opposed to constant boost.
Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
Custom Tuning Services
DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
EFILive's first VGT "Software Wastegate Tune"
I see you have found a suitable "number" for the EQ ratio for the lbz/lmm. did you use the first half of my equation and dial in the "number" to obtain the correct eq ratio?
'07 TBSS, LS2, T42, 3SS, Black on Black on Black, Pretty much stock at the moment. EFILive will fix that
'06 LBZ/Allison 6speed, EC, LB, 1LT, Leather
Current Mods: EFI Live/ PTO High Idle Mod/ Factory Exhaust Brake / BD Full Bore/ TransGo Jr./ TTS Twin Lift Pumps/ MBRP 4" turbo back/ Custom air box mod/ BullyDog Outlook Monitor
465hp/1008tq---7/25/09---Dyno Day Fast Specialties Tuning by ME
Honestly, IIRC, I am using the same equation from earlier gen. The original equation.
It is really entertaining to watch it when the EGR kicks open. Watching MAF drop by 70% is a hoot.
Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
Custom Tuning Services
DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
EFILive's first VGT "Software Wastegate Tune"
Ya and you can feel the power loss, a real hoot.