[s-cars] Lost a Cylinder: Who knows Electronics?

Brian Powell powellb at gmail.com
Thu Dec 9 00:55:04 EST 2004


Well, I have a '97 which doesn't have the 2x2 connector. On my 90q20v
with the 2x2 connectors, you can jumper two of them to force the
output tests.

That being said, the output tests don't check ignition only injectors.

Anyhow, I already know it is cylinder 5 and that cylinder 5 won't
fire. I can trace it back to the ECU as being at fault, the problem is
now tracing the board to find out why the ECU isn't doing its job. My
hope is that this resistor could be the cause because pin 21 goes to
this resistor which then goes to a custom Seimens chip. Once it goes
into that chip, I have no idea what happens... :-(


On Wed, 8 Dec 2004 23:46:19 -0500, Mark Strangways
<Strangconst at rogers.com> wrote:
> I think you can put the ecu into test mode where it will fire the outputs to
> some sequence. I am not sure the exact steps, but I am sure it can be done
> even thru the CEL.

-- 
Cheers,
Brian


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