Question about 2001 Mazda MX-5 Miata

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Not getting fuel to engine. Will run if fuel externally introduced to intake. Problem fuel pump, filter, throttle body????

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Any of the above

Posted on Nov 19, 2009

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  • Master
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Ck the 30amp Fuel Inj fuse. Is the fuel pump running? Thats the first thing to verify. At the relay the RED/BLUE wire goes to the pump. The relay is up under the drivers side of the dash. It wil have 2 WHITE/BLUE wires (power) , RED/WHITE (ground ,ecm grounds the relay) and the RED/BLUE powers the pump.

Posted on Nov 19, 2009

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  • Mazda Master
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Hi:
A good place to start is to replace the fuel filter, if you have not done so in a while. When you get ready to replace the filter, see if there is fuel pressure when you disconnect the lines. That will tell you if the fuel pump is working. While the filter is off, put the fuel line that comes from the tank into a container, and turn on your ignition, and see if the pump runs for a few seconds. You can also take off the gas cap, and have someone listen for the sound of the pump running when you turn on the key. If you have no pressure, and the pump doesn't run, you could have a bad fuel pump, or relay.

Posted on Nov 19, 2009

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