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Unread 02-12-2015, 09:44 PM   #1
LowBudgetZJ
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P0463

Fuel Level Sending Unit Volts High.

Thoughts, tips and advice appreciated. I used the search but didn't find much.

I have been getting this code intermittently. Can probably drive a month or so before setting the code again after clearing it. Although dash fuel gauge bounces pretty regularly for the most part it will not set a code.

The FSM calls for using DRB to measure the voltage. Any way to do this accurately with a multimeter? Doesn't look like my actron scanner has fuel level sending unit voltage when attached to zj.

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Unread 02-12-2015, 11:49 PM   #2
kg6mov
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It sounds like it's pretty solidly hosed, which is unfortunate given its location.

Shouldn't be too hard to measure voltage, if you can find a point to do it. It's probably just gonna do the same thing that your fuel gauge is doing.

I don't remember if the fuel level sender is part of the pump or not, I think it is. If you don't have a record of the pump being done I'd just go for it.
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Unread 02-13-2015, 04:53 AM   #3
coralman
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x2. If your dropping the tank go for the gold. Use mopar or bosch pump assy. If you need wiring diagrams to test let me know and i will post.
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Unread 02-13-2015, 07:53 AM   #4
LowBudgetZJ
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Looks like I can pickup a Bosch pump assembly with level sending unit from Rock Auto, $155.

Anyone know the OEM for mopar?
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Unread 02-13-2015, 07:58 AM   #5
LowBudgetZJ
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Looks like Delphi is OEM. Funny it is cheaper than the Bosch, $95 on RA.
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Unread 02-13-2015, 08:22 AM   #6
MrRoundel
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Quote:
Originally Posted by LowBudgetZJ View Post
Looks like I can pickup a Bosch pump assembly with level sending unit from Rock Auto, $155.
There's a discount code floating around in a recent thread. You might want to find it and apply to your order. I believe it is 5% off. And, this morning, HighLonesome just put up a similar discount for Moparonlineparts.com (?), should you decide to go Mopar.

It's my understanding that Bosch is/was OEM. Regardless, the consensus is to go with either Bosch or Mopar, especially with tank-drop models like the '98.

FWIW: I was just checking out some information on the Matco site yesterday, when I found a page that showed the recalls for various vehicles. There was a recall for "aftermarket" fuel-pumps made by Airtex. Recall # 56416. Just FYI.

Last edited by MrRoundel; 02-13-2015 at 08:26 AM.. Reason: Airtex never OEM/mopar"online"parts.com
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Unread 02-13-2015, 09:47 AM   #7
LowBudgetZJ
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Thanks, I'll check for that coupon.

Here's the link to the Delphi pump on Rock Auto. The second picture has the Chrysler logo and it states it's the OE. Not sure if that is true or not? If not anyone have luck running a Delphi Fuel pump?

http://www.rockauto.com/catalog/more...554&cc=1315963
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