B Camshaft Position Actuator Position Sensor C Range/Performance Bank 1

Where it lives

For P03F7, the part to look at first is the sensor named here. The description of P03F7 puts it on bank 1.

Check these first

• A camshaft position actuator position sensor C with an erratic signal on bank 1
• A worn phaser or actuator on bank 1
• Sludge blocking the oil passages to the bank 1 actuator
• A sensor C connector with corrosion or a poor pin fit
• A mis-timed camshaft on bank 1

What to do next

1. Check the bank 1 camshaft actuator response on a scan tool
2. Inspect sensor C and its connector for corrosion
3. Check oil condition and pressure feeding the bank 1 phaser
4. Verify camshaft timing on bank 1 against spec
5. Replace sensor C or the actuator if the response is slow
6. Clear the code and retest

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