ECM swap?

[Volker]

Hi folks!

It comes more and more to the point that my ECM has a fault (there's still 
the possibility for a bad grounding or anything else - I'll check it out 
tomorrow or so). Current effect is: Injectors aren't opening (both, also 
one has already been replaced - same effect so I don't think the injectors 
are the problem anymore) and the ECM is suspected not to drive a good 
signal to the injectors (I'll hook up the oscilloscope on it and see what 
signal is being generated).

Just for the reason my current ECM is at fault and must be replaced: What 
do I have to do to swap it against another one, where to start, what to 
watch out for?

Model: Isuzu Rodeo 3.1 V6 model 1992, manual trans, A/C
ECM: 1228838 / ANFK

Sensors used: TPS, O2, Temp, MAP, Knock (/ESC)
Elements driven: IAC stepper motor, Injectors (TBI unit, 2 injectors)

As the current ECM is not very common (won't find one at the second hand 
market) I'm thinking about using a good known (well documented at DIY-EFI) 
one and when installing a new one I would also appreciate to have a 8192 
baud interface.

What about my current calibrations when throwing in another unit? What has 
to be done and how, how to convert my current calibrations? May I be able 
to reuse my old calibration? Do you see any trouble with the exhaust gas as 
we're having a very strong law on emissions here in Germany?

Any suggestions, thoughts, comments? Any thoughts about the real problem 
(injectors doesn't inject but everything looks good) are also appreciated.

Perhaps anybody reading here has a #1228838 unit and is willing to sell it? 
I just need a quick solution (a 747 or other swap might be a long term 
project).

Thanks,

Volker

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org