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Old Sep 10, 2008 | 11:25 PM
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Default diagnostic trouble codes
hey what up fellas. i recently plugged in my hypertech on my car and pulled up these codes. i checked on this site, http://www.aa1car.com/trouble-codes/ , and this is what it came up with...

P0463: fuel level sensor circuit high input
P1626: anti-theft system fuel enable circuit (passkey error)

so does anyone know how to fix these problems and how much can i get a fuel level sensor at the dealer?
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Old Sep 11, 2008 | 04:27 PM
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do they keep coming up or is this the first time this happened
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Old Sep 11, 2008 | 05:36 PM
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the anti theft code is because your ignition is going out, either the tumbler or the wiring is damaged. as for the fuel level thing, try checking all the grounds and making sure everything is right. and as for the price, you got to call
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Old Sep 11, 2008 | 06:39 PM
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Fuel level sensor changes resistance based on fuel level. When fuel tank is full, Sensor resistance is high. PCM monitors changes on signal circut to determine fuel level. This information is sent to fuel guage.

If PCM senses fuel level signal voltage greater than 2.9 volts, DTC P0463 sets.

And as for the p1626 I need more info, Dose your car start?
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Old Sep 11, 2008 | 08:21 PM
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Originally Posted by XpEdItIoUs
Fuel level sensor changes resistance based on fuel level. When fuel tank is full, Sensor resistance is high. PCM monitors changes on signal circut to determine fuel level. This information is sent to fuel guage.

If PCM senses fuel level signal voltage greater than 2.9 volts, DTC P0463 sets.

And as for the p1626 I need more info, Dose your car start?
yeah my car starts every day. its my DD. the problem is that fuel needle on my instrument panel doesn't take an accurate reading of the fuel. when the car is on the needle stays at the bottom, it doesn't move.
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Old Sep 11, 2008 | 08:23 PM
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Originally Posted by maverick32
yeah my car starts every day. its my DD. the problem is that fuel needle on my instrument panel doesn't take an accurate reading of the fuel. when the car is on the needle stays at the bottom, it doesn't move.
Yeah sounds like the sender died. You could get a replacement pump and sender from gmpartsdirect.com.
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Old Sep 11, 2008 | 08:24 PM
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Originally Posted by camarojunky74
the anti theft code is because your ignition is going out, either the tumbler or the wiring is damaged. as for the fuel level thing, try checking all the grounds and making sure everything is right. and as for the price, you got to call
alright thanks man...do you happen to know of anyone that can check out that problem for me. at the moment the car hasn't given me any issues with starting. overall the car doesn't give me any issues.
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Old Sep 11, 2008 | 08:26 PM
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Originally Posted by XpEdItIoUs
Yeah sounds like the sender died. You could get a replacement pump and sender from gmpartsdirect.com.
ok cool. is this something you can do it at home or need someone to do it? by the way man thanks for your help, i appreciate it.
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Old Sep 11, 2008 | 08:29 PM
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Originally Posted by XpEdItIoUs
Yeah sounds like the sender died. You could get a replacement pump and sender from gmpartsdirect.com.
um one other thing boss. do you happen to know the part number?
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Old Sep 11, 2008 | 08:45 PM
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There is a thread on here for making a trap door to access your fuel pump without droping the tank. I don't have the part number for the sender.
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Old Sep 11, 2008 | 08:54 PM
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i think i just found it. its the sending unit. the price for that is 324.57. dang that is a pretty penny.
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Old Sep 11, 2008 | 08:57 PM
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I would call parts stores around to find a better price.
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Old Sep 11, 2008 | 09:15 PM
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yeah i will do that. thanks for your help man.
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