P0018 Crankshaft Position Camshaft Position Correlation Bank 2 Sensor A

Definition: The OBD-II code P0018 indicates a problem with the correlation between the crankshaft position and camshaft position for bank 2, sensor A. This means that the engine control module (ECM) has detected an inconsistency in the timing between these components, which can affect engine performance and efficiency.

p0018 – Crankshaft Position Camshaft Position Correlation Bank 2 Sensor A

Typical Severity: Severe

Common Causes

P0018 – Crankshaft Position Camshaft Position Correlation Bank 2 Sensor A

Common Causes:

• Incorrectly installed timing chain or belt
• Timing chain or belt stretched or jumped
• Faulty camshaft position sensor
• Faulty crankshaft position sensor
• Engine mechanical problems

Common Misdiagnosis

OBD2 Code: P0018

Description: Crankshaft Position – Camshaft Position Correlation (Bank 2 Sensor A)

Common Misdiagnosis: Replacing the camshaft or crankshaft position sensors without checking for timing chain/belt issues.

Common Diagnostic Steps

OBD2 Code: P0018

Description: Crankshaft Position – Camshaft Position Correlation (Bank 2 Sensor A)

• Verify the code with an OBD-II scanner.
• Inspect the timing chain or belt for wear or damage.
• Check the camshaft and crankshaft position sensors for proper operation.
• Examine the wiring and connectors related to the camshaft and crankshaft sensors for any signs of damage or disconnection.
• Ensure that the engine oil level is correct and that it is clean, as dirty oil can affect variable valve timing systems.
• If applicable, check for any issues with the variable valve timing solenoid or actuator on Bank 2.
• Perform a visual inspection of the reluctor wheel on both camshaft and crankshaft for any signs of damage or misalignment.
• If necessary, perform a mechanical timing check to ensure that all components are properly aligned according to manufacturer specifications.