90q20v no start issue - forgot the subject line!

[Nate Stuart]

Sorta sounds like the reference sensor is konked out. Not all that
uncommon at all, especially when the ECU's are telling you thats whats
going on. Has he tried swapping it with a known good one? How does he KNOW
that the ECU is getting a usable signal from it? The injectors will never
fire if this sensor isn't operating properly, I've seen three sensors that
'pass' the Bentley checks but were very marginal in (or completely unable
to) provide a usable signal.

Take care,
-Nate
'89 90v8q

A. Gaidos said:
> All,
>  For months now my daughter's (formally My) 90Q20V has been unable to
> start. He listed off all the things
> he's checked and rechecked, tested and retested. The only thing that is
> consistent is the reference sensor error code but the sensor checks out
> and
> is sending a signal to the computer. He's tried two different computers
> aside from the original and the odds of 3 computers being bad is highly
> unlikely. He's run external power to the car to isolate any ignition
> issues as well.