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What does code P0463 mean?

2007 Chevrolet Impala

Posted by Joe Russell on

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Larry Ng

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  • Chevrolet Master
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Well what engine is there.
OBD2, USA, DTC error code, P0463 is a uSa federal code.
all P0 are.
engine 3.5 or 3.9L or 5.3L v8>? ?????? ok will reads all pages

Fuel Level Sensor Circuit High Voltage Trouble Code Conditions:
The ignition is ON, with the engine running. The system voltage is between 9-16 volts.<<< (means alternator not dead )
The sensor output is greater than 2.9 volts. The above condition is present for greater than 30 seconds.

the sensor is inside the fuel tank.
OLD SKOOL: name, is fuel lever SENDER.
also makes fuel gauge work right and not lie.

what does code P0463 mean? - sender-undefined-undefined-0.jpg

Posted on Aug 17, 2022

Simon Atkinson

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  • Chevrolet Master
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P0463 = Fuel Level Sensor "A" Circuit High.
The car's ECU, (it's brain), is picking up the wrong type of signal from sensor for the fuel gauge. Unfortunately to check this you will need to drop the fuel tank off the vehicle. The pump and sensor are mounted in the top of the fuel tank.
From 2006 onwards Chevy stopped fitting the access panel that was in the trunk making the job a lot harder for the home mechanic.

Posted on Aug 17, 2022

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