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sprinkles08
sprinkles08, ASE Certified Technician
Category: Nissan
Satisfied Customers: 21581
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Fuel pump will not run.replaced pump still does not run,

Customer Question

fuel pump will not run.replaced pump still does not run
JA: How many miles are on the car? Is this the original fuel pump?
Customer: 90,000 miles not known about pump
JA: What is the model/year of your Nissan?
Customer: 1986 300zx
JA: What year is your ZDX?
Customer: 1986
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: i changed the fuel pump. yes i am trying to fix it myself.
JA: Anything else you think the mechanic should know?
Customer: not that i can think of
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Nissan Mechanic about your situation and then connect you two.
Submitted: 5 months ago.
Category: Nissan
Expert:  K. Wiggins replied 5 months ago.

Hello, have you checked the power and ground at the fuel pump with a test light or volt meter?

Customer: replied 5 months ago.
I disconnected the connecter in the trunk and have 12 v on one of the three pins.
Expert:  K. Wiggins replied 5 months ago.

Thanks, I'm suspecting that's for the fuel gauge. My wiring diagrams on this one are pretty bad to be honest. I'm going to open this back up to other experts for you. Someone should be with you shortly

Expert:  sprinkles08 replied 4 months ago.

Hello and welcome to JustAnswer!

You may have a handful of things going on. You may have a loss of power or ground to the fuel pump but the pump may not be running because the engine controller isn't awake.

Do you have spark?