Vortec Calc VET Auto Tune, Final Answer!

[tokymon]

so can you post the correct calc_pid file ? i use this for ls all the time

[joecar]

Think I got procedure right. Not sure I have all correct changes done, going to test.

Understand that I have experiance with sytax from HTML. CGI etc... and learning how/what/why these entries work.

Looks ok...

do you realize that CALC.LTFTBEN is defined twice...? Delete CLC-00-002 and the PRN that uses it (see attached).

[EagleMark]

I will if you want to play and help, but this is strictly beta, I have no idea if anything is accurate. Right now I have data spitting out the MAPs several ways, even WB.

Biggest issue the entire time was no Commanded AFR. Right now I'm using a PID named LS2 (read earlier posts), so we need to make sure it is accurate as well.

Have to use Commanded Air Fuel Ratio B LS-2 GM.AFR_B

[EagleMark]

Looks ok...

do you realize that CALC.LTFTBEN is defined twice...? Delete CLC-00-002 and the PRN that uses it (see attached).

Yup, Thanks Joe, I caught that as soon as I connected to the truck.

Look up one post and see if that calc_pid-Vortec-Bets has all it needs for other WB stuff for me please?

[ScarabEpic22]

Good to know, I wonder if the P10 uses GM.AFR_B as its commanded AFR PID instead of GM.AFR...hmmm. But it has a problem that the VE tables are Load % vs RPM (hybrid SD/alpha-n fueling) and the Load PID doesnt work.

[joecar]

Yup, Thanks Joe, I caught that as soon as I connected to the truck.

Look up one post and see if that calc_pid-Vortec-Bets has all it needs for other WB stuff for me please?

calc_pids-Vortec-Beta.txt looks good and clean... I tried it out and all the calc pids it defines select ok.

[joecar]

Good to know, I wonder if the P10 uses GM.AFR_B as its commanded AFR PID instead of GM.AFR...hmmm. But it has a problem that the VE tables are Load % vs RPM (hybrid SD/alpha-n fueling) and the Load PID doesnt work.

It might use GM.AFR_B... or it might use SAE.LAMBDA.

Too bad about the load pid... can SAE.MAP be used as load...?

[EagleMark]

VERIFIED: GM.AFR_B does change commanded AFR when stoichiometric is changed, checked at 14.7 and 14.2, verified both of them through serial WB.

[ScarabEpic22]

It might use GM.AFR_B... or it might use SAE.LAMBDA.

Too bad about the load pid... can SAE.MAP be used as load...?

SAE.LAMBDA reports invalid data last I checked on the P10.

If I knew how to use SAE.MAP and make a load PID out of that, would make my life easier.


OK, sorry for the thread hijack EagleMark.

[EagleMark]

OK, sorry for the thread hijack EagleMark.

It's OK, I owe you one!

Had some time to work on this again, got data but some or all not correct at this point. Some things are still missing or done in VE% and for this PCM VE is in g*K/kPa.

One of the hurdles was already done in another thread by joecar.

 *CLC-00-273
C                  0.0         100.0       .1  "{GM.DYNAIRTMP_DMA.C}"
F                 40.0         220.0       .1  "{GM.DYNAIRTMP_DMA.F}"
K                280.0         380.0       .1  "{GM.DYNAIRTMP_DMA.C}+273.15"
R                500.0         680.0       .1  "{GM.DYNAIRTMP_DMA.F}+459.67"

Changed to:

*CLC-00-273
C                  0.0         100.0       .1  "{SAE.IAT.C}+({SAE.ECT.C}-{SAE.IAT.C})*{CALC.B4901}"
F                 40.0         220.0       .1  "{SAE.IAT.F}+({SAE.ECT.F}-{SAE.IAT.F})*{CALC.B4901}"
K                280.0         380.0       .1  "{CALC.DAT.C}+273.15"
R                500.0         680.0       .1  "{CALC.DAT.F}+459.67"

With that do the degrees F and C need to be defined in calc_pids file?

 *UNITS

#Code     System     Abbr     Description
#-------- ---------- -------- -------------------------------------------------------------
None      None       ""       "No units"
K         Metric     K        "Degrees Kelvin"
R         Imperial   R        "Degrees Rankine"

Some of the Calcs are in VE%? I need VE is in g*K/kPa. So does this need other PIDS or can it be converted?

CALC.VEN                   F300 CLC-00-300   "%,VE"           Tuning           "Calculated VE, not corrected"
CALC.VET                   F305 CLC-00-305   "%,VE"           Tuning           "Calculated VE, BEN corrected"

Then there is this issue? This PCM does not have GM.EQIVRATIO, is there another way like the Dynamic air to blend of IAT and ECT with lookup?

 *CLC-00-032
factor             0             4         .0  "{GM.EQIVRATIO}=1"

*CLC-00-110
factor             0.5           1.5       .4  "{GM.EQIVRATIO}*{EXT.WO2LAM1}"

I loaded a butt load of possible PIDs to validate and checked for data on ones that did not validate, here's an idea of what I have to work with. SOme show as valid but still do not put out proper data because of conversions or lack of other PIDs needed. Tried catching up and educating myslf on this but right now I have a headache and going blind looking, need a reality check!