[s-cars] Engine dying after switch to 1.8T Coils

[Douglas Fifield]

John,

Can't remember if you said you attempted to pull codes?  If so, were there any?

My experiences with AAN's dying resulted in two different solutions.
The first was related to a bad EPROM after doing an MTM 1+ upgrade.
The codes pointed to a failed cam position sensor, but fortunately an
inquisitive mechanic noticed that thumping on the CPU case would cause
the engine to die if it was running.

A year later I actually succumbed to the failed CPS.

Now I have an intermittent miss that is driving me crazy.

Never an end to the fun.

D.

On 7/11/06, John Tilden <j.n.tilden at comcast.net> wrote:
> Well it is still doing it!
> Background:
> It appears to be coincedental at this point, but after installing the 1.8T
> coilpacks and wiring harness the car will die, no fire on any cylinder.
> After a period of time it will restart, usually after an $85- tow is
> completed!
>
> Last night it happend with a cold engine less than 5 mins after start up.
> Annoying!
> I do have a new bit of information however.
> It died just as I was moving it into the garage, and to get it out of the
> way I cranked the starter in 1st gear to move it into the garage and it
> started!
>
> It died again this morning a couple of times and again when I cranked it in
> gear it started right up!
>
> So, tell me, what does that indicate to you?
>
> I'm thinking a couple of things might react to the starter being engaged.
> the Starter Interlock Relay, but I dont really understand why.
>
> The Control Module for the Motronic ECU. Porsches are notorious for this
> failure, what about S-Cars? Has anyone had this fail, and what were the
> symptoms?
>
> The only wire in the ignition circuit common to all cylinders comes from the
> ECU, pin 27. These connections were just all cleaned with Stabilant so they
> should be good!
>
> Any other thoughts?
>
> Any ideas are appreciated!
>
> Thanks,
> John
>
> John Tilden
> Tilden Consulting Services
> 2325 E. Thomas St.
> Seattle, WA
> (425) 881-2895 Office
> (206) 240-5318 Mobile
> j.n.tilden at comcast.net
>
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-- 
Douglas in MN
95.5 Audi S//6 Avant
73 BMW R60/5 mit Toaster Tank