P0017 Code – Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)

The P0017 diagnostic trouble code (DTC) is a generic OBD-II powertrain code that indicates the engine control module (ECM) has detected an incorrect timing relationship between the crankshaft position sensor (CKP) and the exhaust camshaft position sensor (CMP) on Bank 1. This usually indicates a mechanical timing problem, a VVT system fault, or a defective sensor.

What Does P0017 Mean?

P0017 stands for Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B). The ECM continuously compares the crankshaft and exhaust camshaft signals. If their timing is outside the specified range, it stores code P0017.

Symptoms of P0017

• Check Engine Light illuminated.
• Hard starting or no-start condition.
• Rough idle.
• Poor acceleration.
• Engine misfires.
• Reduced engine power.
• Engine stalling.
• Increased fuel consumption.

Common Causes

• Stretched or slipped timing chain.
• Incorrect camshaft timing.
• Faulty exhaust camshaft position sensor (CMP).
• Faulty crankshaft position sensor (CKP).
• Failed VVT actuator or oil control valve.
• Low or dirty engine oil.
• Damaged wiring or connectors.
• Faulty ECM (rare).

How to Diagnose P0017

1. Check engine oil level and condition.
2. Scan for additional trouble codes.
3. Monitor CKP and CMP synchronization using live data.
4. Inspect the timing chain or timing belt.
5. Test the camshaft and crankshaft position sensors.
6. Inspect the VVT system and oil control solenoid.
7. Check wiring and electrical connectors.

How to Fix P0017

• Replace a worn or stretched timing chain.
• Correct engine timing.
• Replace a faulty camshaft or crankshaft position sensor.
• Replace the VVT oil control solenoid if necessary.
• Repair damaged wiring or connectors.
• Change dirty engine oil and filter.

Estimated Repair Cost

• Engine oil and filter change: $40–$120
• Camshaft position sensor replacement: $80–$250
• Crankshaft position sensor replacement: $100–$300
• VVT oil control solenoid replacement: $150–$400
• Timing chain replacement: $800–$2,500+

Note: Repair costs vary depending on the vehicle make, engine type, labor rates, and country.

Related Diagnostic Trouble Codes

• P0016
• P0018
• P0019
• P0335
• P0340

Can You Drive with P0017?

Driving with code P0017 is not recommended. If caused by a timing chain problem, continued driving may result in severe engine damage and expensive repairs.

Conclusion

P0017 indicates that the crankshaft and exhaust camshaft on Bank 1 are out of synchronization. The most common causes include timing chain wear, VVT system faults, faulty position sensors, or electrical problems. Prompt diagnosis and repair can help prevent major engine damage.