My AutoVE questions

[mys10v8]

I am on my second iteration of AutoVE logging and have a few questions:

1) The BEN transition filter included with the scan tool includes a 2500 RPM limit - Why?
2) Can/Should I modify the 400 rpm row in my Main VE table to better match the curve the 800 rpm row is creating?
3) I am thinking I should hook up my 3500lb boat trailer to get better coverage in the logs. Any comments/concerns about this?
4) Any of you experts think I am missing anything in the logs? - see any issues?

Hardware: 99 S10 2WD pickup, LS1/A4/MAF/TB from 2000 Z28, LS1B, FAST intake, TPIS cam/springs (specs attached), shorty headers, 2.5" dual exhaust
Software: OS from Silverado modified to run LS1 - IFR/transmission/MAF calibrations from Camaro OS

Truck Cam Specs from TPIS.pdf
99 S10 LS1 A4 (12212156)_0010 Original Tune.tun
autoVE_0001.efi
autoVE_0002b.efi
99 S10 LS1 A4 (12212156)_0010 SDAutoVE_0002.tun

I am a long time reader and first time poster - thanks to all the experts who take the time to contribute to this forum.

--Joe

[joecar]

Hi Joe,

welcome to the forum

1) delete the 2500 rpm line;

2) yes (the VE table should not contain any sudden hard steps);

3) loading the engine allows better cell hit counts, dragging the brakes helps (for a short time), IDK about hauling a boat trailer (how fast can you go);

4) I'll have to view your files later today...

--Joe

[mys10v8]

To continue the story: Ran through iterations/logs of AutoVE. I have attached them all.

autoVE_0003.efi
autoVE_BBL_0003a.efi
autoVE_BBL_0003b.efi
autoVE_BBL_0003c.efi
autoVE_0003d.efi

All these logs were combined with the weighted average xls from here:
http://forum.efilive.com/showthread....ging-log-files

When copying into xls I did NOT filter low count cells hoping the summation of all the log files would get me a few more cells with counts > 50. The transient filter was applied before copying into xls.

Does my WBO2AFR1 jump around more than 'normal'?

[mys10v8]

These are the tune files I created from above posted logs. One w/just the logs applied, another was manually smoothed.
99 S10 LS1 A4 (12212156)_0010 SDAutoVE_0003b all logs.tun
99 S10 LS1 A4 (12212156)_0010 SDAutoVE_0003c all logs smoothed.tun

By the looks of other VE tables I've seen around here this should be smother than it is.

What do I do with the cells I did not cover in the logs but bumped by 15% as per the AutoVE tutorial?

[mys10v8]

This log (and the autoVE_0003d.efi above) was with the boat attached - my rolling chassis dyno - made it easier to hold the BEN in each cell.

autoVE_0004.efi
99 S10 LS1 A4 (12212156)_0010 SDAutoVE_0004.tun

This is what is loaded into the truck now (new Main VE and SD):
99 S10 LS1 A4 (12212156)_0010.tun

A couple short logs of LTFT with new tune - they are looking quite negative:
autoVE_BBL_0004b.efi
autoVE_BBL_0004c.efi

So what's the effect of just updating the Main VE and not setting it for SD as per Tutorial (C2901, C2903, C6002, B5914)?

[joecar]

To continue the story: Ran through iterations/logs of AutoVE. I have attached them all.

autoVE_0003.efi
autoVE_BBL_0003a.efi
autoVE_BBL_0003b.efi
autoVE_BBL_0003c.efi
autoVE_0003d.efi

All these logs were combined with the weighted average xls from here:
http://forum.efilive.com/showthread....ging-log-files

When copying into xls I did NOT filter low count cells hoping the summation of all the log files would get me a few more cells with counts > 50. The transient filter was applied before copying into xls.

Does my WBO2AFR1 jump around more than 'normal'?

That spreadsheet is interesting...

I prefer to take a 20 minute log covering my operating range, and immediately apply this, and to then re-log on this new tune...

( the scantool/tunetool human interface is designed to make this easy )

[joecar]

These are the tune files I created from above posted logs. One w/just the logs applied, another was manually smoothed.
99 S10 LS1 A4 (12212156)_0010 SDAutoVE_0003b all logs.tun
99 S10 LS1 A4 (12212156)_0010 SDAutoVE_0003c all logs smoothed.tun

By the looks of other VE tables I've seen around here this should be smother than it is.

What do I do with the cells I did not cover in the logs but bumped by 15% as per the AutoVE tutorial?

Your smoothed VE is good as it stands, there is no need to make it any smoother.

It seems that 15% is too large for the initial bump... study the trend that AutoVE is applying, and manually apply this to the non-hit cells.

[joecar]

This log (and the autoVE_0003d.efi above) was with the boat attached - my rolling chassis dyno - made it easier to hold the BEN in each cell.

autoVE_0004.efi
99 S10 LS1 A4 (12212156)_0010 SDAutoVE_0004.tun

This is what is loaded into the truck now (new Main VE and SD):
99 S10 LS1 A4 (12212156)_0010.tun

A couple short logs of LTFT with new tune - they are looking quite negative:
autoVE_BBL_0004b.efi
autoVE_BBL_0004c.efi

So what's the effect of just updating the Main VE and not setting it for SD as per Tutorial (C2901, C2903, C6002, B5914)?

You tuned mostly the low RPM potion of the VE table, and the 4c log shows trims going negative as you get into the upper RPM's...

also, you have to set the scantool to automatically look for DTC's... we want to see if the MAF failed (which indicates that the PCM is using the VE table exclusively)... if the MAF is not failed (no MAF DTC) then the PCM is still using the MAF or it calculates MAF values from the VE table.

If you don't fail the MAF, then the PCM uses the MAF most of the time (always above 4000 rpm and during steady state air/throttle conditions under 4000 rpm (B0120)), so modifying the VE table has no effect.

[joecar]

More comments:

set B3608, B3609 to zero (permanently).

set B3615, B3616 to 65% below 3200 and 35% above 3200 (permanently).

set B3618 to EQR 1.165 (AFR 12.6) regardless of tutorial (permanently).


set C6001 P0101-3 to A:1-Trip or C:Non-Emissions, make sure one of those DTC's triggers (whenever running SD).

[joecar]

is FPR manifold-referenced or un-referenced...? If FPR is manifold-referenced then the sloped IFR is incorrect.