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Re: EPROM Programming



This document has been the most helpful description of how the GM ECM works:
http://www.thrasher-ep.com/Chips_htm/cal_hints.htm   I've got a printed copy
and refer to it from time to time.  It is for the Buick Grand National but
the logic is the same.

Jim Brady
'87 Monte SS 383 TPI 6 speed

> Mike,
>
> OK, now for the $1,000,000 question. I have been led to believe that the
> whole reason for going with GM FI was for the self-adaptive learning that
it
> does via the integrator and BLM. I was under the impression this thing
tuned
> itself and all you had to do was get it close and let the BLM adjustments
> take it from there. But from what I have learned, the BLM only handles
fuel
> and not spark. So shouldn't I concentrate on spark and let fuel self
adjust?
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