Nissan Repair Questions? Ask a Mechanic for Answers ASAP
It sounds like the fuel level sending unit is bad. The fuel pump on your vehicle incorporates a fuel pump and a sending unit in one part. The sending unit measures how much fuel is in the tank and sends that signal to the dash. When the signal from that unit dies then it sets a trouble code p0463. Do plan to repair it yourself?
It would be easy if it didn't require removing the fuel tank. You have to get the tank as empty as possible and then drop it down from the bottom of the vehicle. This is not easy if you don't have the vehicle on a lift.
The service engine light is on to tell you that the p0463 code is set. It's the same issue.
It looks like Nissan issued a recall for it a few years back. Unfortunately it doesn't list mileage coverage. Normally this means that it is covered under unlimited mileage, but you would have to call the dealer to be sure. Here is a copy of the recall. It looks to me like this is the exact issue you are experiencing.
The fuel pump assembly will need to be replaced I looked up pricing and it should cost about $700.
One time I had a customer that was experiencing the same problem and we added a fuel cleaner to the fuel tank which was able to clean the carbon off of the sending unit and it worked normally ever since. It only worked that one time because the problem was carbon buildup on the contacts. According to the recall the sending unit board looks to be defective on your model rather than just excessive carbon buildup.
I would expect the dealer to cover it under warranty.
No, the only thing it will cause is maybe making you run out of gas. If you have emissions testing in your area it will make you fail most emissions tests (just because the computer detects a fault- it's not actually polluting more).
If you reset the code it won't make the gauge work again and it will likely trigger the light again right away.
Exactly, the dealer is the only place to determine whether it falls under that warranty. I would hope that you have an honest dealership on your hands and they would have no problem covering it under warranty. You have the right to take it in and tell them "I'm not going to have it done if it's not covered under the recall". Stress to them that you will not be paying anything so if it's not part of the recall you don't want it done. They should take care of it. I have done that before with dealerships here with my fleet vehicles. We don't want to pay for diagnosis that we could do ourselves, but we do want them to take care of warranty/recall items for us.
I don't think I would try the fuel cleaner, especially since Nissan has already identified a problem with these fuel pumps.
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Let me know if you need additional info.