Re: need help with '165 in Vette

["Bruce Plecan" <nacelp@bright.net>]

> Car in question: 1987 Corvette 4spd automatic, 406 cu. in, alum heads, 232
@
> .050 cam
> Electronics used: '165 ECM, ABTF bin, ported MAF, GM 25lb/hr injectors,
> 48psi fuel pressure (w/no vacuum)
> Software used: TunerCat with ECM_32B tdf

What are the gms/sec at idle?
What mode is Diacom in?
Is there a Nuetral, and in gear idle setting.
You at the limits so your so far off, I'd just be looking to get close,
It's rich, and you have 48 for fuel pressure?.
What intake?.
What  for intial timing?.
Grumpy
>
> Problem #1:
>
> Above 80d Celcius, I have the idle speed set at 875rpm in the chip. Yet,
> when at an engine temp of 88dC (indicated by the dash and Diacom), Diacom
> reports a commanded idle speed of 925rpm (which is the setting I have at
> 44dC). Any ideas as to why the ECM is commanding a higher than specified
> idle speed?
>
> Problem #2:
>
> Programming the chip to think it has 27lb/hr injectors results in a BLM of
> 108 and an integrator of 128 at idle. In an effort to raise the BLM value,
I
> reprogrammed the chip with an injector constant of 28lb/hr. Results: BLM
108
> and integrator of 110. Huh??? This doesn't make sense. Shouldn't the BLM
> (and integrator) value increase with a shorter commanded pulse width? What
> am I missing here? (BTW, the min BLM allowed is 108, and both times BLM
cell
> 0 was used.)
>
> Thanks for any and all help,
> Nick
>
>
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