Camshaft Sensor:
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Monitors the positions of the camshaft to allow for correct ignition timing
Crankshaft Sensor:
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Detects the position of the crankshaft allowing the ECU to calculate its position in relation to the pistons in the engine
Troubleshooting:
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Symptoms:
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Engine misfiring
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Loss of engine power
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Vehicle failing to start
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Possible causes for failure:
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Damaged wire connector
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Damage to sensor element
Testing:
To test the camshaft sensor disconnect it from its electrical connectors. Ensure that the ignition is turned off before disconnecting.
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Firstly, check the resistance of the part. For this, connect a multimeter to the sensor’s connectors and rub a metal object over the tip of the sensor. This should show varied resistance between 200 and 900 ohm. If this is recorded then the sensor is working correctly.
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If further investigation is needed, try measuring the voltage being sent to the sensor by connecting a multimeter to the electrical connectors. This will determine whether the sensor is receiving a signal from the ECU.
Other components to check:
✓ Timing belt (this may have jumped teeth)
✓ Ignition system
Common Fault Codes (Camshaft)
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P0020 “A” Camshaft Position Actuator Circuit (Bank 2)
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P0021 “A” Camshaft Position – Timing Over-Advanced or System Performance (Bank 2)
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P0022 “A” Camshaft Position – Timing Over-Retarded (Bank 2)
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P0023 “B” Camshaft Position – Actuator Circuit (Bank 2) See Trouble Code P0020
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P0024 “B” Camshaft Position – Timing Over-Advanced or System Performance (Bank 2) – See Trouble Code P0021
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P0025 “B” Camshaft Position – Timing Over-Retarded (Bank 2) – See Trouble Code P0022
Common Fault Codes (Crankshaft)
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P0016 Crankshaft Position – Camshaft Position Correlation (Bank 1 Sensor A)
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P0017 Crankshaft Position – Camshaft Position Correlation (Bank 1 Sensor B)
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P0018 Crankshaft Position – Camshaft Position Correlation (Bank 2 Sensor A)
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P0019 Crankshaft Position – Camshaft Position Correlation (Bank 2 Sensor B)