fuel pump relay?

1989 MAZDA B2200
120,000 MILES • 4 CYL • 2WD • AUTOMATIC
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MICHAEL CRAWFORD2
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I have the vehicle listed above that was running fine then stopped getting fuel. The fuel pump works if I hook it straight to the battery. I tried finding the relay behind the driver side kick panel but I'm not finding it. There is a pressure switch and a big black box but neither has the right part number. Any help would be greatly appreciated
Jan 21, 2024 at 5:59 PM
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

Some of these came with fuel injection, and others had carburetors. However, I believe the relay is the same for both.

I went with the fuel injection model. The reason you are having trouble finding it is because they call it a circuit open relay. It is behind the left kick panel. I attached a couple of pics below to help you locate it.

Let me know if this helps or if you have other questions.

Take care,

joe

See pics below.
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Jan 22, 2024 at 12:37 AM
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MICHAEL CRAWFORD2
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The diagram you posted shows 3 things behind the kick panel. My truck only has 2 things, one being the RFW control unit, and the other is a pressure sensor.
Jan 22, 2024 at 5:22 AM
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi Mike, does your vehicle have a carburetor or is it fuel injected? Also, check to see if there is a production date either under the hood or on the door frame on the driver's side. It may be a late or early production vehicle and the company used a different setup.

Also, let me know if you can locate the circuit open relay anywhere else. Again, it could be year related.

Let me know

Joe
Jan 22, 2024 at 8:24 PM