Calc.VET: correcting MAF and calculating VE (in single log)

[joecar]

Post some screenshots.

On the PIDs tab, do the pids CALC.VET and CALC.VEN have red X thru them...?

[joecar]

Hmmm, CALC.VET data looks wrong... MAF data looks ok.

Need more data, drive around the block.

[joecar]

Fix this:

Out of Range calibration summary: 04:00:37 am, Friday May 22, 2015

Engine Calibration.Abuse Management
{B1207} Abuse Management Vehicle Speed Threshold, was out of range when loaded.

[joecar]

Is your FPR manifold-referenced or un-referenced...?

[LastCall]

Thanks for the quick response Joecar!

Post some screenshots.

On the PIDs tab, do the pids CALC.VET and CALC.VEN have red X thru them...?

No they don't, see screen capture below:

Hmmm, CALC.VET data looks wrong... MAF data looks ok.

Need more data, drive around the block.

Okay, I'll do that. I did the math on a calculator and couldn't get it to line up either.

One thing I noticed, the temps dob't look right. The dynamic (DAT) air temps are negative and/or really low. But the IAT sensor looks accurate. Weird.

Fix this:

Just did - thank you.

Is your FPR manifold-referenced or un-referenced...?

Vacuum in not-referenced. Using a corvette-fuel filter a few feet off the tank with a single line to the rail.

[joecar]

...

One thing I noticed, the temps dob't look right. The dynamic (DAT) air temps are negative and/or really low. But the IAT sensor looks accurate. Weird.

...

Vacuum in not-referenced. Using a corvette-fuel filter a few feet off the tank with a single line to the rail.

If GM.DYNAIRTMP_DMA pid is returning bad values, then for now use (temporary solution) IAT in place of DAT, and do take a look at how to create the pid CALC.B4901 in the Calc.VET thread.

Ok, so your FPR has no reference hose going to the manifold (or any source of vacuum and/or boost).



I see it in your log, your CALC.DAT being wrong is causing bad CALC.VET.

[LastCall]

If GM.DYNAIRTMP_DMA pid is returning bad values, then for now use (temporary solution) IAT in place of DAT, and do take a look at how to create the pid CALC.B4901 in the Calc.VET thread.

Ok, so your FPR has no reference hose going to the manifold (or any source of vacuum and/or boost).

I see it in your log, your CALC.DAT being wrong is causing bad CALC.VET.

I found the calc_pid text file with 4901 and replaced the old calc_pid file. That seems to have fixed the DAT.K temp issues. However, the values still seem really low. Based on the LTFTBEN, I should be multiplying the values by 1.05-1.10 (increase of about 10%). However, on the BEN calculated VE, I should reduce the values by about 25%. See screen capture below:

[LastCall]

Here is the VE table I was reffering to when I was comparing the calculated values in the MAP and the values in the VET table.

[joecar]

You haven't applied the transient filter... but I don't think that's the problem.

How is the MAF table coming out, post a pic of it.

[joecar]

You show two maps:
1. VET [g*K/kPa] x MAP x RPM,
2. LTFTBEN [%] x MAP x RPM,

are you calculating the VE or are you correcting it...?