[Shotimes] engine problem, please help with diagnosis

[Carl Prochilo]

I don't know I've ever heard of anyone report this type of problem on a SHO,
but the symptoms you describe are EXACTLY what happened to my 91 Alfa 164.
After a series of incorrect diagnoses, including replacing the check valve
in the fuel tank, it was discovered that the coolant temp sensor signal to
the Motronic was bad due to poor wiring connection.  The computer relies
heavily on the coolant temp info.  The damn car would just quit at the most
inopportune times like intersections, and sometimes I would have to wait for
the car to cool down again before it would restart.
I may be completely off-base here, but your reported symptoms just hit such
a nerve with me.

Good luck,
Carl
----- Original Message ----- 
From: "van Oss" <vanOss@centurytel.net>
To: <shotimes@autox.team.net>
Sent: Wednesday, June 04, 2003 12:31 PM
Subject: [Shotimes] engine problem, please help with diagnosis


> Having a problem with the 91.  Symptoms and medical history below.  Please
> suggest what I should test or swap.  Thanks.
>
> Joseph van Oss
>
> Symptoms:
> - Long cranking time before start, gradually occurring more often over the
> last two weeks
> - Idle wanders up to 3K
> - Occasionally idle dives to 500, lopey, no power, and stalls if you step
on
> gas
> - No CE light
>
> History:
> - 91 mtx with 140K
> - Within last 2 years:  Rod bearings, CID, CPS, timing belt, fuel pump,
> plugs/wires, much more
> - Extremely reliable and quick-starting up until about 2 weeks ago
>
> Again, thanks.
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