[Shotimes] pcm problems on a 93 sho?

[alfitz@alfitz.com]

It does sound like the computer. Find another SHO enthusiast in your area
and just swap computers to test it. If that's not possible, I will lend you
a computer to try.


Al Fitzgerald
http://www.alfitz.com/sho
NEW & USED SHO PARTS
.
SHO PARTS REQUEST FORM: http://www.alfitz.com/sho/parts-form.htm


WE ACCEPT MasterCard or Visa
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----- Original Message -----
From: <Drnkslingr101@cs.com>
To: <shotimes@autox.team.net>
Sent: Saturday, October 12, 2002 2:20 PM
Subject: [Shotimes] pcm problems on a 93 sho?


> I took my 93 sho to the dealer because it was running rich(black carbon
was
> coming from the exhaust when i  punched it) and it ocasionally didnt want
to
> start but eventually would after numerous attempts,where the cylinders
would
> freeze and stutter then finally fire and run. Though when this happens the
> tach does not work until I get it somewhere that I can step on it and can
> slam the the rpms up past 4000 then the tach springs to life and the check
> engine light goes off until the engine reaches running temp then the light
> comes back on. Also after 20 minutes or so of highway speeds the atx wants
to
> slam into 2nd gear when I get into city stop and go driving unless I let
off
> of the pedal just b-4 the anticipated shift. The dealer who allready got
me
> for $750.00 says hes "confident" that it needs a pcm, thouhg after my last
> visit i am not so confident in theyre diagnosis since they offer no
guarantee
> and no returning of computer parts.Also after they replaced the MAF,2 O2
> censors, and one other censor, my lite still comes on,they say its an egr
> code but checked my egr valve and found it to be ok.That is where they say
it
> must be my pcm. Has anyone run into this before, the symptons are like
> clockwork and are a great way to ruin a nice drive.
> p.s. If  when the engine wont turn over as above, if I wait it out usually
> about 5 to 10 minutes it will start and run fine except after reaching
temp.
> the light will come back on but there seems to be no affect in
performance.
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