[Shotimes] sho won't start

[Kevin & Cheryl Airth]

Ben:
 Before you change the pump try to jumper it at the test plug. It should run
continuous. The fuel pump lead is grounded and then the key is turned on.
The fuel pump lead is where you ran KOEO test. Hold the EEC test plug with 4
pins pointing up. The pin all the way to the side with the short angle is
what you want to ground. Can you hear the pump running?

 If this still does not run the pump then I would change the IRCM. This is
the black metal box under the radiator shield over the radiator. Can't see
it very well but has a big plug running to it. This is more likely than the
pump. Most pumps fail slowly with reduced output and increased noise. The
relay box has a quick "overnight" failure mode. You can also wire in a
external relay for the fuel pump to avoid replacing the IRCM. I have done
this on one of my SHO's and it works fine. If you need a diagram and
instructions let me know. Your problem sounds electrical whatever it is. But
get a good strong battery or keep a trickle charger going to keep voltage
up.
.
.




> i've checked those fuses, and everything is ok.  I've tried running the
> KOEO test, and the car makes noises but i may have run the battery too
> low to finish the test because i never see the Check Engine light flash
> for any codes.  I checked the valve on the fuel rails and there is no
> spray of fuel out...so i would guess no fuel pressure.  would this
> point to a faulty fuel pump?  i have checked the fuel reset button in
> the trunk and it is not tripped.  thanks everybody for your help.  this
> is my daily driver and i'm stuck at home till i get it running.
>
> Ben Zientek.


> > Ben:
> >  Check the fuses under the hood. It's a black plastic cover on the
> > drivers
> > side firewall. About 10 fuses. On the ATX cars there is a 10 amp fuse
> > that
> > powers the ignition and the low coolant sensor. If the low coolant
> > sensor
> > shorts out and takes down this 10 amp fuse the car will have no spark.
> > Did
> > you pull all the fuses in the under hood box?
> >
> >  Also depress the test valve on your fuel rails just to verify that
> > you have
> > fuel spraying out.
> > .
> >
> >
> >
> >> I'm in need of some help,  I have a 94 SHO atx.  I has been working
> >> fine up until this morning when i tried to start it.  It turns over
> >> but
> >> does not start.  I've check all the fuses, and the fuel reset switch.
> >> those are ok.  It ran fine friday evening when i drove it for about
> >> half hour coming home from work where it had sat for about 6 days when
> >> i was traveling.  it has fuel, i had filled it up before my trip, and
> >> the gauge shows fuel.  does anybody have any other ideas why it would
> >> just not start now?  thanks for any help.
> >>
> >> Ben Zientek