Tried a good fuel pump relay and it did not make any difference. Otherwise the car starts, drives and runs out fine. It will starts immediately after shutting down like this. There is never any issue if it is up in revs. Is there any particular area on this chassis (129) that the wiring sometimes has an issue in regards to shorting/grounding out? I did note that the battery is undersized for this application. The battery terminals/connectors look good and are tight.

I'll get the diagnostic hooked up to it over the next day or so and see what I come up with.

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Jim