$12P Custom Tunes

[Holden202T]

was there a wideband on it ? did it actually go lean ?

[vlad01]

was there a wideband on it ? did it actually go lean ?

no WB, I don't know what the fueling was actually like, but went well regardless, no knocking unlike 98

[Holden202T]

narrowband ?

[vlad01]

narrow band showed it was tad rich in the 9.8 areas but still close enough for BLM to correct for, beyond that the NB cant tell you much.

[Holden202T]

im more interested to see if the narrowband went leaner readings as the injectors maxed.

[vlad01]

i should have a partial log. my logs kept dropping out, larger I found I have a faulty USB port on the laptop.

ill take a look and post it up later.

[vlad01]

Do you have to set the 0 and 5V scalars differently on E85?

here is a log anyway. Looks like it was bit too rich and it never ran out of fuel even at full noise and 100% DC.

So yes, you can run a stock V6 no probs.

[Holden202T]

Do you have to set the 0 and 5V scalars differently on E85?

if your talking about wideband, then yes, you need to set them to the min/max for your widebands analog output settings of E85.

[vlad01]

Do you have to set the 0 and 5V scalars differently on E85?

if your talking about wideband, then yes, you need to set them to the min/max for your widebands analog output settings of E85.

how do you know what they should be? 14point7 don't list anything other than petrol 0-5v AFRs

can you work it out based on the spread sheet to PM little while ago?

[Jayme]

yes you can figure it out.... convert the petrol AFR's to lambda first, then convert that to E85 AFR, then use those numbers.

eg: most of them are 0v = 10 and 5v = 20 AFR
so 20 / 14.7 = 1.36 lambda
10 / 14.7 = 0.68 lambda

stoich of E85 is 9.8526

so 0.68 x 9.8526 = 6.699768
1.36 x 9.8526 = 13.399536

so the values you use for the range are 0v = 6.7 5v = 13.4