interesting problem with 5000tq

[SuffolkD at aol.com]

Igor:
Someone just posted to the V8 list a similar issue.
Some sensor RPM or another that caused the ECU to think the engine wasn't 
running and to shut down the fuel pump.  SEE BELOW:

> From: "igor cepic" <quatro at europe.com>
> Hi,Everybody.I usually dont post,but check archives every day or so,but
> now I have interesting problem.A car is from my friend,it is a 86 5000tq
> Here is.
> A car start fine run for 30 min or so,and shut it self,so far my friend 
> change 
> timing belt,fuel pump,fuel pump relay,and we swaped ecu.Same thing
> A car is getting spark when is no start condition,so I think that rpm,hall 
> sensor are fine
> and ignition module too.And also after some time car start fine then stop
> What do you think
> -- 
> V8 DIGEST SNIPET:
> Message: 1
> Date: Thu, 20 Jan 2005 21:21:04 EST
> From: DasWolfen at aol.com
> Subject: Re: [V8] new problem I need help with - no start :(
> To: z1sales at z1auto.com
> 
> Its not tough to diagnose at all....you described the classic "engine speed" 
> sensor (aka RPM sensor) failure mode.
> 
> RPM sensor heat soaks while the car is running in slow traffic or idling in 
> a 
> driveway....the ECU thinks the engine isnt running and shuts down the 
> fuel....car will not restart until the sensor cools off.
> ------------------------------
> Message: 2
> Date: Thu, 20 Jan 2005 18:28:38 -0800
> From: "Buchholz, Steven" <Steven.Buchholz at kla-tencor.com>
> Subject: RE: [V8] new problem I need help with - no start :(
> To: <V8 at audifans.com>
> 
> ... actually I'd say it is a sign that the speed sensor is dying ... the
> engine was running and died then restarted.  If the car would run until
> shut down hot and then not restart then I would start first with the
> reference sensor ... 
> 
> The thing is that you can read the codes out of the ECU to get a clue
> ... look for references to Scott Mockry's website for more info ...
> www.sjmautotechnik.com
> 
> Steve B
> San Jose, CA (USA)
> > 
> > Sounds like reference sensor.
> > 
> > http://www.audifans.com/archives/1999/05/msg02438.html
> > 
> > BCNU,
> > http://www.geocities.com/cobramsri/
> > 
> > "Z1 Performance" <z1sales at z1auto.com> writes:
> > 
> > > down a leak, and left it running.  Came out about 10 minutes later, 
> > > car was off.  Restarted it, went back inside, checked a few minutes 
> > > later, again, turned off.  Then it would not restart for about a 
> > >