KOEO 542

Hello all,
I have 1995 XLT, manual transmission, 130,000 miles. My son took it to
work and everything was fine. When he went to leave work, it would not
start. It cranks fine, but will not start. I suspected it was a fuel
supply problem because I did not hear the fuel pump when I turned the
key to the on position. When I got it towed home, the tow truck driver
squirted some engin starter fluid in the intake and it started and ran
for a moment. This morning I pulled the KOEO codes and got a 542, fuel
pump circuit open-PCM to motor ground and a 113,IAT sensor circuit above
max voltage. I also tried grounding the fuel pump enable pin at the
data link connector, fuel pump does not run. I think I need to start
with the KOEO 542. Can some one elaborate on the description? Should I
be looking at the wiring between the fuel pump and it's grounding point?
Or could it be the fuel pump itself? Thanks.

Jay

One of the "cave man" tests...... Have an assistant turn the key to the run
position and immediately give the tank a wallop with a rubber mallet... if
you can now hear the pump run, simply replace it... if the pump still
doesn't run, proceed with normal diagnostics...

"Jay" > wrote in message
. ..
> Hello all,
> I have 1995 XLT, manual transmission, 130,000 miles. My son took it to
> work and everything was fine. When he went to leave work, it would not
> start. It cranks fine, but will not start. I suspected it was a fuel
> supply problem because I did not hear the fuel pump when I turned the key
> to the on position. When I got it towed home, the tow truck driver
> squirted some engin starter fluid in the intake and it started and ran for
> a moment. This morning I pulled the KOEO codes and got a 542, fuel pump
> circuit open-PCM to motor ground and a 113,IAT sensor circuit above max
> voltage. I also tried grounding the fuel pump enable pin at the data link
> connector, fuel pump does not run. I think I need to start with the KOEO
> 542. Can some one elaborate on the description? Should I be looking at
> the wiring between the fuel pump and it's grounding point? Or could it be
> the fuel pump itself? Thanks.
>
> Jay