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Author Topic: Fuel Level Sensor - Code PO463  (Read 14597 times)
Hootowl
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Fuel Level Sensor - Code PO463
« on: July 20, 2007, 02:10:19 PM »

The Service Engine Light came on yesterday and so stopped by Autozone after work to get a read on it.  The code is PO463 and the computer called it a Fuel High Level Sensor.  Looks like a visit to the Nissan dealer is in order!  My son claims that the sloshing around the gas tank went through in Colorado wore out the level sensor.  Who knows, maybe he is right!  LOL!

Hootowl
« Last Edit: July 20, 2007, 02:56:17 PM by Hootowl » Logged
Hootowl
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Re: Fuel Level Sensor - Code PO463
« Reply #1 on: July 21, 2007, 02:27:14 PM »

Got this fixed today at the Nissan dealer under warrenty.  Apparently the fuel pump and level sensor are an intregal assembly.  The level sensor had an open circuit at one of its test points so they replaced the fuel pump + level sensor.  Maybe now the fuel guage will be more linear!  As it was, since new at a half tank for example, I had used up almost 2/3 of the tank.
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k1w1t1m
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Re: Fuel Level Sensor - Code PO463
« Reply #2 on: July 24, 2007, 01:29:06 PM »

That's good news they replaced it. I expect that they'd want quite a few bucks for that part if you had to pay for it yourself.
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Re: Fuel Level Sensor - Code PO463
« Reply #3 on: August 01, 2007, 11:20:35 AM »

$300 ish for the part, $500 ish total for the job. Unfortunately I know.
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jnansley
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Re: Fuel Level Sensor - Code PO463
« Reply #4 on: August 02, 2007, 03:20:17 AM »

Apparently the fuel pump and level sensor are an intregal assembly.

 bang head  icon_smile_bigcry  bang head
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Re: Fuel Level Sensor - Code PO463
« Reply #5 on: August 19, 2007, 11:14:10 AM »

$300 ish for the part, $500 ish total for the job. Unfortunately I know.

$500 for labor to replace the fuel pump?  Wow!  It's not a bad job on an Xterra since it is one of the few vehicle in which you don't have to drop the tank.  It should only take about an hour.
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swampwrecker
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Re: Fuel Level Sensor - Code PO463
« Reply #6 on: August 20, 2007, 07:50:54 AM »

$500 (total for the job) - $300ish for the part equals $200ish for the labor :-)~

-Michael
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AZ-Ted
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Re: Fuel Level Sensor - Code PO463
« Reply #7 on: March 15, 2008, 05:49:04 AM »

Sorry to bring up an old post, but I just wanted to let everyone know that fuel sending unit is a common failure.  Some people are on their third or fourth unit.  Mine failed at 30K miles, and was replaced under warranty.  This was one of the reasons that I decided to buy the extended warranty.  Now, I am covered for 5 yrs / 100K miles.

As was previously posted, the fuel pump, the fuel sending unit, and fuel "filter" (it is actually a screen) is one assembly.  I wonder what Nissan does with all of the fuel pumps they get back when they warranty out the assembly.  I haven't really heard of anyone having trouble with the pump, so far it has just been the sending unit.
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Re: Fuel Level Sensor - Code PO463
« Reply #8 on: March 15, 2008, 06:36:05 AM »


Being that the Frontier and X are pretty much the same vehicle component wise, is this something that will affect the 2nd Frontier as well?
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OffroadX
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Re: Fuel Level Sensor - Code PO463
« Reply #9 on: March 15, 2008, 01:55:36 PM »

This only affected the 1st-gen trucks.
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NismoCC
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Re: Fuel Level Sensor - Code PO463
« Reply #10 on: March 16, 2008, 04:29:33 PM »

This only affected the 1st-gen trucks.

Ahh ok, I missed that...
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mike_nismo
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Re: Fuel Level Sensor - Code PO463
« Reply #11 on: March 16, 2008, 04:36:12 PM »

This only affected the 1st-gen trucks.
Brent,
Hootowl and AZ-Ted have Gen2 X's.

 And yes there has been a few people with the Gen2 Frontier with the same code.
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Hootowl
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Re: Fuel Level Sensor - Code PO463
« Reply #12 on: March 16, 2008, 04:44:43 PM »

I think what Brent was referring to is that the first 3 or 4 years of the 1st generation Frontier, this was a very common fault and there was a TSB out on it.  What was happening then was that the electrical connectors at the top of the fuel tank were very prone to corroding and failing.  For that matter, the Xterra during this same time frame also had the problem.  I had this problem on my 01 SC/CC Frontier like lots of others did and it was fixed at no charge by the Nissan dealer.

Anyway, this doesn't seem to be a chronic problem with the 2nd generation Frontier and Xterra such as it was with the earlier year trucks.

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mike_nismo
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Re: Fuel Level Sensor - Code PO463
« Reply #13 on: March 16, 2008, 04:49:59 PM »

I think what Brent was referring to is that the first 3 or 4 years of the 1st generation Frontier, this was a very common fault and there was a TSB out on it.  What was happening then was that the electrical connectors at the top of the fuel tank were very prone to corroding and failing.  For that matter, the Xterra during this same time frame also had the problem.  I had this problem on my 01 SC/CC Frontier like lots of others did and it was fixed at no charge by the Nissan dealer.

I see. The one in under articales/reviews
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Re: Fuel Level Sensor - Code PO463
« Reply #14 on: March 16, 2008, 07:36:17 PM »

Actually, there are quite a few Gen2 Xs with this problem.  Not sure if it has been given a TSB, though.

You can find many posts regarding this topic on thenewX.org.
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