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Chris(aka-Moose)
Chris(aka-Moose), Nissan Technician
Category: Nissan
Satisfied Customers: 615
Experience:  16 years of experience
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I have replaced the fuel pump and am looking fuel pump relay

Customer Question

i have replaced the fuel pump and am looking for the fuel pump relay to reset on my 2007 pathfinder
JA: Thanks. Can you give me any more details about your issue?
Customer: replaced fuel pump due to code of high voltage for fuel pressure sensor. the digital DTE was inoperative so i replaced the entire assembly
JA: OK got it. Last thing — Nissan Mechanics generally expect a deposit of about $20 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Nissan
Expert:  Jay replied 1 year ago.

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

You said you had a code? What code did you have?

Customer: replied 1 year ago.
High amp fuel pressure sensor
Expert:  Jay replied 1 year ago.

Do you have the number?

It didn't run before you did the fuel pump assembly?

Customer: replied 1 year ago.
It did run. The digital display quit working, and I know Nissan has chronic problems with the arm Assy that the float connects to.
Expert:  Jay replied 1 year ago.

If the digital display stopped working, that sounds more like a Gauge issue, which could have set that code as well.

Does the truck start after replacing the sender assembly? Do you happen to have the code number you had? do you have any new code numbers?

Customer: replied 1 year ago.
I cannot get the vehicle to start now that we have replaced the fuel pump. I do not have the code right now. I was hoping you could tell me if the fuel pressure switch is located so we can see if it needs reset.
Expert:  Jay replied 1 year ago.

That is Fords that have that switch. Nissan's do not. You will need to turn it over a while to build up fuel pressure and prime the line. How long did you try to start the car?

Customer: replied 1 year ago.
No I have no power going to the pump. Is there anything I need to reset? The car ran fine until I replaced the pump
Expert:  Jay replied 1 year ago.

Did you check the fuel pump fuse in the IPDM?

Customer: replied 1 year ago.
I did check the fuse
Expert:  Jay replied 1 year ago.

Did you check the fuse with a test light?

How did you check power at the fuel pump to determine you weren't getting power?

Customer: replied 1 year ago.
Test light shows power at the fuse, none at the pump
Expert:  Jay replied 1 year ago.

You do know the pump only gets power while the engine is being turned over right?

Customer: replied 1 year ago.
Checked it with a test light while cranking over and no power
Expert:  Jay replied 1 year ago.

The fuel pump fuse had power on both sides of the fuse?

Customer: replied 1 year ago.
Expert:  Jay replied 1 year ago.

Then we need to check power coming out of the IPDM.

Do you have a volt meter?

Expert:  Jay replied 1 year ago.

I just found something.. When you turn the key to the ON position.. is the engine fan on?

Customer: replied 1 year ago.
fan does not come on with key in on position
Expert:  Jay replied 1 year ago.

https://dl.dropboxusercontent.com/u/105565483/Pages%20from%20PGa.pdf

That is the IPDM. We need to see if pin 13 has power when the engine is turning over.

Customer: replied 1 year ago.
Power to pin 13
Expert:  Jay replied 1 year ago.

Then you need to ohm the Red wire from the pump to the IPDM. There has to be a problem with that wire if you have power at the IPDM and not the pump.