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My 2006 6MT is throwing both of these codes and found conflicting information from my searches on both this form and others.
For P1078, I have replaced camshaft position sensor bank 2 and (driver side below throttle body/intake) and camshaft position sensor bank 1 (passenger side). I believe that the one I need to replace is on the passenger side and is accessible from below. The conflicting information I found mentioned replacing the vvt solenoid for this issue.
For P0462, I cleaned both of the fuel gauges on both passenger and driver side as many people report that this solves their issue. This did not solve my issue. I then tested the driver side sensor by using a multi-meter to measure if the resistance was changing when the floater moved up and down. For driver side the resistance did change when moving the floater so I assume it is working correctly. I did not test the passenger side. I see many people saying that this could be a cluster issue. None of the forums I found seem to really answer the question.
Any info is appreciated.
Thank you,
2006g35a
Last edited by 2006g35a; Apr 20, 2020 at 11:33 PM.
I would test both the sub and main pump just to verify they are both working before ordering a replacement instrument cluster.
P0462 - low voltage (actually not voltage, it's resistance, FSM uses the wrong terminology) from the fuel level sensor. This code is actually sent from the INSTRUMENT CLUSTER back to the ECM. Basically the instrument cluster has recognized that the value is outside what it's expecting to see and is sending the error via CAN back to the ECM.
This kind of problem is different than the typical broken dash issue. In that case the correct signal is sent to the dash but the signal is then misinterpreted due to bad resistors in the cluster. Your problem the cluster is not seeing the correct info from the pump so something is LIKELY wrong with the pump, sub pump, harness, or the wiring.
You should put your instrument cluster in diagnostic mode and verify the needles do actually work though. Section DI - Driver Information page 12, you need to press/release the odometer button to get the needles to move once it's in diagnostic mode.
P1078 - Bank 1 exhaust timing control high/low voltage. This is almost ALWAYS the cam sensor, but if you get a lot of oil into the harness it can send a bad reading as well so you should use contact cleaner and spray out the harness, let it dry, see if it works again. If the sensor is bad replace with a Hitachi or Genuine Nissan Parts, don't use aftermarket (Hitachi is the OEM supplier for those parts so safe to use).
You have the rev-up engine in your 2006 6MT so you have FOUR cam sensors. The VTC solenoid is for the INTAKE cams not the exhaust cams, no need to replace those. The exhaust cams use a magnetic retarder. You probably replaced the wrong sensor, look at the shape of the sensor head, two are straight and two are angled.
Thank you. I tested the instrument cluster and it seemed to work as the test instructions indicated. My OBD-II reader mentions "A" after the "Low Voltage etc." description. Is there any correlation between passenger side and driver side on the gas tank regarding "A" that is mentioned from my code reader? Is A passenger side and B driver side? or vice versa?
I would test both the sub and main pump just to verify they are both working before ordering a replacement instrument cluster.
P0462 - low voltage (actually not voltage, it's resistance, FSM uses the wrong terminology) from the fuel level sensor. This code is actually sent from the INSTRUMENT CLUSTER back to the ECM. Basically the instrument cluster has recognized that the value is outside what it's expecting to see and is sending the error via CAN back to the ECM.
This kind of problem is different than the typical broken dash issue. In that case the correct signal is sent to the dash but the signal is then misinterpreted due to bad resistors in the cluster. Your problem the cluster is not seeing the correct info from the pump so something is LIKELY wrong with the pump, sub pump, harness, or the wiring.
You should put your instrument cluster in diagnostic mode and verify the needles do actually work though. Section DI - Driver Information page 12, you need to press/release the odometer button to get the needles to move once it's in diagnostic mode.
P1078 - Bank 1 exhaust timing control high/low voltage. This is almost ALWAYS the cam sensor, but if you get a lot of oil into the harness it can send a bad reading as well so you should use contact cleaner and spray out the harness, let it dry, see if it works again. If the sensor is bad replace with a Hitachi or Genuine Nissan Parts, don't use aftermarket (Hitachi is the OEM supplier for those parts so safe to use).
You have the rev-up engine in your 2006 6MT so you have FOUR cam sensors. The VTC solenoid is for the INTAKE cams not the exhaust cams, no need to replace those. The exhaust cams use a magnetic retarder. You probably replaced the wrong sensor, look at the shape of the sensor head, two are straight and two are angled.
I want to confirm: I am able to use the same part (Cam Shaft Position Sensor 23731-AL61A) for the Exhaust Valve Timing Control Position Sensor?
