90 MAP system Code 43 help needed

[Bruce Plecan]

Also, might need more timing added during the test.
You can get to the stage of everything perfect and do EST codes, cause the
engine is not very detonation prone.   In addition to items mentioned.
Bruce

From: "Programmer" <nwester at eidnet.org>
> Bad knock sensor, RFI from ignition wiring (make sure the ignition isn't
> within 6" of the KS wiring circuit--I can send you the actual GM
diagnostic
> sheet on this.
> Lyndon.

> From: mike.hoenes at ncmail.net
> > I need a guru on this one.
> >  My ECM is setting a code 43 - which on this setup is indicative of
> something wrong
> > with the Knock Sensor circuit.
> > I have replaced the sensor, the ECM, the distributor pickup, checked all
> the wiring,
> > and I have checked all the "sense" voltages in the Knock Sensor circuit.
> All the
> > voltages indicate that everything is normal and that it should not set
the
> code.
> > Does anyone know of another reason it sets a code 43?
> > The system worked fine for about 6 months beofe it started setting the
> code.
> >
> > TIA
> > mike
>

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