ECM swap?

[Dan Griffin]

I assume your fuel filters are not clogged ( including the one in the tank )
and your fuel pressure is what its supposed to be...A new ecm last I checked
at GM dealer was $196. USA with core, memcal included..Without core its
around $400. theyll want your old one back really bad..You might also try a
parts store for a reman.
Dan
----- Original Message -----
From: Volker <Volker at VWSoft.com>
To: <gmecm at diy-efi.org>
Sent: Monday, August 06, 2001 5:41 AM
Subject: ECM swap?


> 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

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