Originally Posted by

**joecar**
I don't understand what .txt file you're referring to...? Do you mean the calc_pids.txt file...? In this file you can custom tailor a suitable BEN pid for your situation.

Instead of % error, would you settle for a correct factor (multiplier)...?

So, a BEN pid is exactly that, a correction multiplier (i.e. you multiply the BEN into the MAF or VE table (whichever one you're correcting).

Which PCM or ECM do you have (which year/model/vehicle)...?

If you have an LS1 (Gen III) then simply log these pids:

- CALC.AFR_PLX1

- CALC.BEN_PLX1

- EXT.AD1

- GM.AFR

If you want to log GM.EQIVRATIO instead of GM.AFR, then we would edit your calc_pids.txt to create a BEN pid for this.

If you have an E38 (Gen IV) then log these pids:

- CALC.AFR_PLX1

- CALC.BEN_PLX1_E38

- EXT.AD1

- E38.AFRATIO_DMA

If you want to log SAE.LAMBDA instead of E38.AFRATIO_DMA, then we would edit your calc_pids.txt to create a BEN pid for that.

BTW: your AEM 30-4100 has serial comms output ability... if you use this we would make you a BEN pid for this.

You would be logging a BEN pid (i.e. a correction multiplier) which depends on your ECM.