John wrote:
>
> Grant Holst wrote:
> >
> > I need the wisdom of the List. I have a Eurospec kit
> > in my '85 GL. On hot days the engine will not start
> > back up after sitting for a few minutes. It needs to
> > cool down almost completely before it will start.
> >
> Hi grant,
>
> Because you have a engine "swap", there is no clear cut troubleshooting
> routines. However I'm surprised to read your long story that contained
> NO voltage measurements. The fact that the engine is "dead" is a real
> blessing in disguise since it allows you to look at voltage values to
> determine what's missing.
>
> You need to do a pin by pin of all the circuits to the control module.
> There are maybe 20 circuits to be checked. This is the only way to deal
> with such a problem. I have a Digifant pin-by-pin check list but it
> won't work here due to the swap. Use the Bentley book and check each
> circuit  when the no start is present.
>
> Also do you know if the fuel pump is working during the no start and if
> the new engine has a Hall sensor-is it working ?
>
> Regards,        JP

John,
No I didn't take any voltage measurements, mainly because
when the problem comes up I swap relays and that usually
fixes the problem  and I don't have my voltmeter with me
at the time.
You did stir some thought this morning with the fuel pump
question. Do you know if the engine would act like it's
running on 1 or 2 cyls for a while if the fuel pump
wasn't pumping? The wire I replaced last night also
powers the fuel pump relay as well as the power supply
relay.

Grant Holst
Sunnyvale, Ca.