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Chris(aka-Moose), Nissan Technician
Category: Nissan
Satisfied Customers: 621
Experience:  16 years of experience
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I'm working on a 2000 Nissan Altima and I have no current to

Customer Question

I'm working on a 2000 Nissan Altima and I have no current to the fuel pump and no injector pulse all fuses good
Submitted: 11 months ago.
Category: Nissan
Expert:  Jay replied 11 months ago.

Hello my name is ***** ***** thank you for your question.

When you turn the key to the On position, is the security light on solid? Also how did you verify you are not getting fuel and injector pulse?

Customer: replied 11 months ago.
fuel pressure gage and noid light also checked the current no current to fuel pump the relay they say is for the fuel pump located in the interior fuse box above fuses has 6 wires according to the service manuel the relay should have 4 wires nt sure if this is th right relay also when hook up scanner getting no communication from eng side of ecm all others read fine trans abs etc
Customer: replied 11 months ago.
oh and the security light is off when cranking
Customer: replied 11 months ago.
note check engine light came on abt 20 miles before car was cut off then would not start after 20 minutes
Expert:  Jay replied 11 months ago.

Does the fuel pump fuse get power?

Expert:  Jay replied 11 months ago.

You can't communicate with the Ecm?

Customer: replied 11 months ago.
the fuel pump fuse has current and no communication with the ecm
Customer: replied 11 months ago.
checked all fuses all fuses good I'm thinking ecm what do u think
Expert:  Jay replied 11 months ago.

If you can't communicate with the Ecm, it sure does sound like a Ecm issue. I can certainly provide you with the Ecm terminal layout if you would like to go thought it to verify. But it sure does sound like a Ecm to me..

Let me know..

Expert:  Jay replied 11 months ago.

I can also give you the fuel pump wiring diagram to see if the Ecm is grounding the Fuel pump relay

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