[V8] flash of death

cobram at juno.com cobram at juno.com
Tue Aug 25 09:19:02 PDT 2009

After an e-mail from superdave, I recalled that unlike the earlier cars,
the later 4.2's had a speed limiter that cut out around 130MPH.  If it
works like the ur-S cars, then the speed signal could cause the ECU to
interrupt the ground to the fuel pump relay if it gets the speed limiter
signal, killing the fuel supply to the engine.  IIRC the way to get
around the speed limiter in the ur-S cars was to snip the speed signal
wire from the ECU.

Can anyone with a later V8Q verify if this is applies?  

Most conversations are simply monologues delivered in the presence of

> D Morralee <superdaveski at hotmail.com> writes:
> Over the 
> last two years I had this type of failure 
> >on my 93V84.s after 15-20 mins of driving . The car would just go 
> dead, but always had no problem 
> >restarting. The cause was the Speedo Transmitter in the 
> Transmission . This made the speedometer go 
> >all wonky and then the car would just quit . It took a long time to 
> figuar out that the Speedo Transmitter 
> >could get heat soaked and fail . Why did it take two years to 
> figuar out ... because this is a rare problem . 

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