trouble code

[Jeep1947]

[Friends truck 2000 model 3500 threw a code of P0463 last night he called me to find out what it means, he does not have access to internet so I am the middle man for him. Any help would be greatly appreciated. Thanks Jeep Taylor

[Moparctd87]

this code sets when the pcm detects a voltage of over 9.4 for mor than 2 seconds. could be a one time fluke or it could be the fuel tank module

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02 Ram 2500 6-spd ho 4x4, KN intake, Adrenaline, fass, Stage 5 jammers, Super B Special

[Jeep1947]

Thanks Moparctd87, hope it is a one time fluke. Will tell Ben and thanks again for the help.Jeep1947

[Jeep1947]

Buddies truck wont start. Tach quit working so he shut it off now it wont start. Any ideas he is out on the road broke down any help will be appreciated thanks Jeep Taylor

[DevilDogDiesel]

First thing that comes to mind when you said tach quit working is crankshaft position sensor.

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2000 2500 ext. cab short bed, AFE cold air intake, single 6 inch stack, high tech turbo, FASS 95, Scheid injectors, Adrenaline, HP intercooler boots, fully built trans., custom trac. bars, HAISLEY MACHINE ALL THE WAY!!

[BILLS06]

Possible Causes:

FUEL LEVEL SENSOR
(N4) SIGNAL CIRCUIT SHORTED TO GROUND
INTERMITTENT CONDITION
ECM

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06 QCSB Capped Rail Airaid Baffle Delete MagHytec Transmission Pan Aeroturbine Muffler Fluidampr Superchips Pyro/Boost & Autometer Ultra Lite Digital Oil Pressure & Transmission Temp Gauges ATS 5 Star TC Flexpiped CAT DDR Enabled Royal Purpled EZ Down Weston Nerf Bars Spray In Bed Liner Valley Gooseneck Hitch
http://www.myspace.com/montanadodge

[BILLS06]

1. FUEL LEVEL SENSOR
Disconnect the ECM harness connectors.
Disconnect the Fuel level sensor harness connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance of the Fuel level sensor across the (N4) signal circuit and (K900) return circuit.
Is the resistance less than 10 ohms?
Yes >> Go To 2
No >> Replace the Fuel level sensor.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING

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06 QCSB Capped Rail Airaid Baffle Delete MagHytec Transmission Pan Aeroturbine Muffler Fluidampr Superchips Pyro/Boost & Autometer Ultra Lite Digital Oil Pressure & Transmission Temp Gauges ATS 5 Star TC Flexpiped CAT DDR Enabled Royal Purpled EZ Down Weston Nerf Bars Spray In Bed Liner Valley Gooseneck Hitch
http://www.myspace.com/montanadodge

[BILLS06]

2. (N4) SIGNAL CIRCUIT SHORTED TO GROUND
Measure the resistance between the (N4) signal circuit in the sensor
harness connector and battery negative.
Is the resistance less than 10 Ohms?
Yes >> Repair the (N4) signal circuit shorted to ground.
Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/ENGINE CONTROL MODULE - DIAGNOSIS
AND TESTING)
No >> Go To 3

__________________
06 QCSB Capped Rail Airaid Baffle Delete MagHytec Transmission Pan Aeroturbine Muffler Fluidampr Superchips Pyro/Boost & Autometer Ultra Lite Digital Oil Pressure & Transmission Temp Gauges ATS 5 Star TC Flexpiped CAT DDR Enabled Royal Purpled EZ Down Weston Nerf Bars Spray In Bed Liner Valley Gooseneck Hitch
http://www.myspace.com/montanadodge

[BILLS06]

3. ECM
Reconnect the ECM harness connector.
While monitoring with the scan tool, disconnect the Fuel level sensor harness connector.
Did the DTC P0462 set?
Yes >> Test Complete.
No >> Replace the ECM.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

__________________
06 QCSB Capped Rail Airaid Baffle Delete MagHytec Transmission Pan Aeroturbine Muffler Fluidampr Superchips Pyro/Boost & Autometer Ultra Lite Digital Oil Pressure & Transmission Temp Gauges ATS 5 Star TC Flexpiped CAT DDR Enabled Royal Purpled EZ Down Weston Nerf Bars Spray In Bed Liner Valley Gooseneck Hitch
http://www.myspace.com/montanadodge

[Jeep1947]

Thanks for all the input on problem. I am going over this morning and check it out for him got it to his grandfathers house last night. He is a great carpenter but not much at twisting wrenches, will keep yall posted on progress. thanks Jeep