I have a 2005 Infiniti G35 (3.5L) with 140K. My fuel gauge has started to read near full at all times and give me P0462 error codes. I replaced both the driver side fuel sensor unit and the passenger side unit (part of the fuel pump assembly). This had no effect on the problem. I still get P0462 errors and the fuel gauge isn’t working correctly. I self tested the instrument cluster and everything tested OK. I also put an Ohm meter on the fuel sensors (both units) while manually changing the float position and I did see the Ohm readings change on both units. I don’t know where to go from here. Any help would be greatly appreciated.
P0462 Infiniti – Fuel Level Sensor Circuit Low Input
Possible causes
– Faulty fuel level sensor
– Fuel level sensor harness is open or shorted
– Fuel level sensor circuit poor electrical connection
Low fuel level can trigger this code. Before replacing any parts try filling up the fuel tank and erasing the engine code. If the problem persist it may be necessary to replaced the fuel level sensor.
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