[s-cars] Just cut out and died. Update 1

[Douglas Fifield]

Bill,

Just thought I would chime in because I experienced your exact
symptoms myself several years ago.  A couple of months after having
Anderson Motor Sport guys upgrade my stock ECU to a MTM 1+, I started
getting an occasional stumble at freeway speeds.  Then one day the car
died suddenly (on the freeway) but I was able to coast to an off ramp
and into a parking lot.  Repeated attempts to start proved futile.

Car (95.5 S6 Avant) was flatbedded to my backup wrench because
Anderson's were filled.  The mechanic assigned to the job did a fair
amount of sleuthing and discovered that the fault lay in the ECU box
and not with the CPS as other's diagnosed.  He was able to start the
car and reproduce the "kill" by tapping on the ECU with a screwdriver
handle.

Further investigation found a faulty MTM EPROM though it could be any
loose electrical connection in there.  We replaced the chip and all
was good.

Douglas

PS  And I did have to replace the CPS but not for some time after.

On Fri, Jan 16, 2009 at 12:10 PM, Bill Mahoney <wmahoney at disk.com> wrote:
> Oh yeah a breezy -16F (-26.7C) here this AM.   Too cold for me personally
> and the "Alfresco Performance Center."
>
> But Miss Piggy is at the wrench who reports now that it will start, run for
> five minutes and die.  He believes it to be electrical related issue given
> the way it conks out.  To me prior to final death, there were a series of
> very brief but sharp misses.. Like the whole electrical system was suddenly
> turned off for like half a second and then it would come back and be okay
> few or 30 seconds or a few minutes and then finally die for good.
>
> I gave him a new thermostat to install this AM.  Wahler 87c which passed my
> boiling H2O test last night.
>
> I am really thinking ignition switch, but he is going to reinstall the old
> coil packs and see what happens to rule out a faulty apikol wiring harness.
>
>
> I am hoping it still dies and then go with the new ignition switch.. Unless
> advised something else is more probable.  The newer style coil packs were
> running sooo well (when it was running) that they or their derivative are
> the way to go IME.
>
> Of course our 20o heatwave forecast tomorrow may cure all ills.. dunno.
>
> And that's the way it is.
>
> Stay tuned.
>
> Bill~cold n dead~m
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>



-- 
Douglas in MN
95.5 Audi S//6 Avant
73 BMW R60/5 mit Toaster Tank