Re: Debugger board for P4 ECMs

[Ludis Langens <ludis@cruzers.com>]

Swayze wrote:
> 
> has anybody 'written' a selftest.bin? or is this a GM item?

Many of GM's ECMs include a self test in the MEMCAL.  It is entered at
power up by applying a high than normal voltage on the fuel pump
feedback, lower than normal on the ECM power source, and a few other
conditions.  Check the ECMGuy hacks for more info.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/


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