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I have replaced the fuel pump and am looking fuel pump relay…

Customer Question
I have replaced the...

I have replaced the fuel pump and am looking for the fuel pump relay to reset on my 2007 pathfinder

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

Replaced fuel pump due to code of high voltage for fuel pressure sensor. the digital DTE was inoperative so i replaced the entire assembly

Submitted: 2 years ago.Category: Nissan
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Answered in 21 minutes by:
3/2/2016
Nissan Mechanic: Jay, Nissan Technician replied 2 years ago
Jay
Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 21,506
Experience: 20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
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Hello my name is ***** ***** thank you for your question.

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

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Customer reply replied 2 years ago
High amp fuel pressure sensor
Nissan Mechanic: Jay, Nissan Technician replied 2 years ago

Do you have the number?

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

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Customer reply replied 2 years 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.
Nissan Mechanic: Jay, Nissan Technician replied 2 years 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?

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Customer reply replied 2 years 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.
Nissan Mechanic: Jay, Nissan Technician replied 2 years 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?

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Customer reply replied 2 years 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
Nissan Mechanic: Jay, Nissan Technician replied 2 years ago

Did you check the fuel pump fuse in the IPDM?

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Customer reply replied 2 years ago
I did check the fuse
Nissan Mechanic: Jay, Nissan Technician replied 2 years 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?

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Customer reply replied 2 years ago
Test light shows power at the fuse, none at the pump
Nissan Mechanic: Jay, Nissan Technician replied 2 years ago

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

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Customer reply replied 2 years ago
Checked it with a test light while cranking over and no power
Nissan Mechanic: Jay, Nissan Technician replied 2 years ago

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

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Nissan Mechanic: Jay, Nissan Technician replied 2 years ago

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

Do you have a volt meter?

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Nissan Mechanic: Jay, Nissan Technician replied 2 years ago

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

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Customer reply replied 2 years ago
fan does not come on with key in on position
Nissan Mechanic: Jay, Nissan Technician replied 2 years 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.

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Customer reply replied 2 years ago
Power to pin 13
Nissan Mechanic: Jay, Nissan Technician replied 2 years 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.

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