Why is my fuel pump not working on my Miata?

Why is my fuel pump not working on my Miata?

If your vehicle has stopped starting or if it makes a jolting motion when you start it before resuming normal behavior, a worn-out fuel pump may be to blame. A fuel pump replacement for Mazda MX-5 is just what you need to effectively fix these problems, and it also ensures that you’re getting the most bang for your buck when you fuel up.

Can a fuel pump be replaced on a Mazda MX-5?

A fuel pump replacement for Mazda MX-5 is just what you need to effectively fix these problems, and it also ensures that you’re getting the most bang for your buck when you fuel up. Shop AutoZone’s broad line of MX-5 fuel pumps today and take advantage of access to our Loan-a-Tool program and battery charging during your next in-store visit.

How to diagnose fuel delivery problems in a Miata?

A multimeter — you’ll need this to be able to measure resistance and DC voltage. Check the fuses with the meter. You want continuity. Check (listen) for the main relay clicking in when you turn on the switch. It’s on the passenger side fenderwell and it’s pretty loud. you should hear it in the cockpit of the car. Then, move on to: 1.

How do you fix a bad fuel pump relay?

5. Install a jumper between the Fuel pump and Ground pins on the Diagnostic connector. This will pull in the fuel pump relay and you SHOULD get 12VDC at the fuel pump connector with the ingnition switch ON. If it passes this test, the fuel pump relay CONTACTS AND COIL are working. If it fails this test , you probably have a BAD Fuel Pump RELAY.

How to check the fuel pump in a Miata?

Check (listen) for the main relay clicking in when you turn on the switch. It’s on the passenger side fenderwell and it’s pretty loud. you should hear it in the cockpit of the car. Then, move on to: 1. Pull the access panel in the package tray so you can get to the fuel pump assembly. 2.

What should I do if my fuel pump is not working?

Install a jumper between the Fuel pump and Ground pins on the Diagnostic connector. This will pull in the fuel pump relay and you SHOULD get 12VDC at the fuel pump connector with the ingnition switch ON. If it passes this test, the fuel pump relay CONTACTS AND COIL are working. If it fails this test ,…

How to diagnose a bad fuel pump relay?

If it passes this test, the fuel pump relay CONTACTS AND COIL are working. If it fails this test , you probably have a BAD Fuel Pump RELAY. Remove the jumper from the FP and Gnd terminals of the diagnostic connector. 6. Disconnect the plug from the fuel pump relay. There are 4 wires. Red with blue stripe goes to the fuel pump.

How can I test my fuel pump power supply?

If you have access to a 12 volt power supply you can test the fuel pump by touching the 2 terminals on the left side of the 4 pin connector with 12 volts. It SHOULD come on . If not don’t give up yet! Remove the short jumper wire from the 4 pin connector and the fuel pump.