AutoVE

[Chevy366]

Need a little help here , I just got my LC-1 W/B installed and working , was doing the AutoVE tutorial , got to the last and am confused , the tutorial states save the file as AutoVE_0000.tun , but then says preform a calibration only with SDAutoTune_0000.tun , where did this file come from ?
I am assuming that the data loged with the LC-1 is used to modify the SDAutoVE.tun that was created at the first of the tutorial , and then labled AutoVE_0000.tun .

EFILive AutoVE Tutorial EFILive V7 Scan and Tuning Tool
7. Hide all cells with a value of less than 50.
8. Select all cells in the table by clicking in the extreme top-left grey cell, then right
click and select Copy with labels (Shift+Ctrl+C).
9. Switch back to the EFILive Tuning Tool.
10. Open calibration {B0101} "Main VE Table".
11. Rigth click on any cell and select Paste->Paste and multiply with labels.
12. If you are tuning a 1999 or 2000 operating system then repeat steps 3 to 11 to
copy/paste the VE data from map [B] to the {B0103} “Backup VE Table”.
13. Save your tune as:
My Documents\EFIlive\V7\Bins\AutoVE_0000.tun
14. Peform a calibration only reflash of SDAutoTune_0000.tun into the PCM.
15. If necessary repeat the steps in the previous section, Data logging and this
section until the average cell values in your BEN map(s) are close to 1.00 (aim
for +/- .01).

[Tordne]

Looks like the filename is just incorrect. It is basically a rinse, repeat process until you are satisfied that the BENs are as good as you can get them.

[Chevy366]

I am also working with custom OS3 and a 5 wire MAF , I did not remove the wires from the MAF so as to have the IAT still , am I getting good data this way or should the MAF be disconnected ?
Not much info on the 5 wire MAF in the AutoVE Tutorial .

Thanks

[TAQuickness]

Good catch TunedbyGM. I will get it updated in the near future.

As for the MAF, check your DTC's. If you have p0101, p0102, and/or p0103, the PCM has detected the MAF failure and you're in SD. The step for unplugging the MAF guarantees the MAF will fail and put you in SD.

[Chevy366]

Good catch TunedbyGM. I will get it updated in the near future.

As for the MAF, check your DTC's. If you have p0101, p0102, and/or p0103, the PCM has detected the MAF failure and you're in SD. The step for unplugging the MAF guarantees the MAF will fail and put you in SD.

Thanks , will look and see if DTC's are there .

[Chevy366]

Ok , does anyone know which pins are the IAT in a 5 wire GM cold wire MAF ?
The wires are , BLK , BRN , BLK/W , Y , and PK, I understand that the IAT is 5v so going to try and find which wire the 5v is .
It seems that three wires are + , - , F , and F is the square wave freq between - and F , and the the IAT is +(5v) , - .

[Chevy366]

Well figured out that it is the Black and Brown that are the IAT in the 5 wire MAF .
Now MAF is unpluged and the PCM will not (how long does it take the PCM to DTC a failed MAF ?, setting is 2 seconds) DTC the MAF (Scan Tool shows 0 hz MAF Freq) and it stays in CL , nothing but P0102 , and P0103 DTC and I only get those if I set the values in MAF tables(C2901 etc ) to 0 hz not 1 hz , B3647 is at 14.8 and the PE is 14.6 .
Was in OL before trying the tutorial , with just Custom OS3 , with MAF .
So is there a different AutoVE for Custom OS's ?

[TAQuickness]

There is not a seperate tutorial for performing AutoVE against a custom OS. From OS3 up, you will need to pay attention to B3647 as it's not the same table as found in OEM OS's or pre-OS3. In the case of B3647, I'd recomend, as a starting point only, setting the entire table to resemble the 90*C row from B3605 as described in the AutoVE tutorial. You can fine tune B3647 to your liking at anytime. I'll make a note of this and see what I can do to get into the tutorial.

[Chevy366]

I thought that putting the B3647 table at that value would cause it to go into semi-open loop mode
with 2% fuel triming ?
WIll try and see what happens !

[Tordne]

If you copy/paste that line it will cause it will equate to an EQ Ratio of 1.00 and invoke Semi-Open Loop. Perhaps change the 14.63:1 AFR to 14.7:1, and if using EQ Ratio change from 1.00 to 0.995 or something.