Replaced fuel pump and ignition switch, but fuel pump will not come on. Can you help?

Asked by Oct 14, 2014 at 11:36 AM about the 1994 Mazda B-Series Pickup

Question type: Maintenance & Repair

Fuel pump will not come on.

5 Answers


First thing to check would be fuel relay,and fuse,s.

2 of 2 people found this helpful.
Best Answer Mark helpful

I think that model also has an inertia switch. if that fails, you wont have spark or power to the fuel pump. the switch on some models is down on the passenger side, right above the carpet line. you may have to ask an expert on the location, but i would check it for sure. had a similar problem on a ford ranger. also, check the ecm relay.

1 of 1 people found this helpful.

What is a ecm relay

7 of 7 people found this helpful.



It is the relay for the main computer.

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