Question about 1991 Mazda B-Series

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Truck periodically stops running. will turn over but no spark

Runs good for few days then all of sudden will just sop running. wont even compression start. will sometimes start right back up and other times wont, will take hours or days before will strart again. will turn over but no spark. have already canged fuel oump, filter, and rewired under dash and hood. coil tested good.

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  • Mazda Master
  • 21,873 Answers

So you know the fuel pump would have nothing to do with the plugs getting spark, right ?
You said the coil tested good, is it getting voltage from the key switch and a ground signal from the distributor ?

Posted on Sep 12, 2012

  • Debra Oneel
    Debra Oneel Sep 13, 2012

    at first i thought it may be fuel issue now i believe it is electronic. how do i voltage for key switch and ground signal from distributor?

  •  Stephen
    Stephen Sep 13, 2012

    You would need a wiring diagram of the ignition circuit. Depending on which engine you have there should be one wire for the coil that is power from the key switch and another that provides a ground signal. If the coil is also the module that manages timing you will have several wires in the harness.

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SOURCE: hi have a issue with a mazda .ford product

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