No power to fuel pump

Asked by Skippy481 Jan 03, 2019 at 08:03 PM about the 1999 Nissan Altima GXE

Question type: Maintenance & Repair

Son rear ended a car and both air bags deployed.
Now he has no power to fuel pump. At least it
seems like there is no power, unhooked fuel lines
and pump,is not pumping.

2 Answers
103,205

KenF answered 5 years ago

Check the fuel pump relay and fuse? There is no reset switch per se, it's part of the ECM, pop open the under hood fuse/relay box and check the relays. The ECM requires a number of signals before it will provide power to the fuel pump via the fuel pump relay, namely from the crank position sensor and cam position sensor. I'm not too familiar with Nissans, but AFAIK the fuel pumps don't prime like they do on domestic cars, there has to be engine rotation first, so if those two signals aren't present no fuel pump. It could also simply be the accident disabled the wiring harness or fuel pump itself.

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Guru78DSB answered 4 years ago

I've got a 2005 Nissan Altima fuel pump is not working I tested the relay it turns over I put the starter fluid in the filter and it will crank over and start for just a second

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