P0019: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)

What does P0019 mean?

The exhaust-cam reference on bank 2 no longer lines up with the crankshaft reference as expected. Sensor B normally denotes that exhaust cam. The mismatch can come from incorrect mechanical timing or a distorted position signal, so replacing the cam sensor without checking synchronization may leave the cause unresolved.

Generic OBD-II definition: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B). Confirm applicability in your vehicle service information.

Common causes

• Stretched chain, skipped belt tooth, or failing tensioner
• Shifted cam/crank tone wheel
• Damaged position-sensor wiring or a failed sensor
• VVT actuator stuck away from its base position

Symptoms

• Long cranking or no start
• Rough running with reduced power
• Timing-area rattle

Diagnostic focus

A bank 2 exhaust-only mismatch can help narrow the fault to that cam, phaser, or its reference wheel. Check the accompanying intake and crank codes before deciding the entire timing set is at fault.

Can I keep driving with P0019?

Severity: High Arrange diagnosis promptly and avoid heavy loads. Stop the engine for timing-chain rattle, an oil-pressure warning, severe roughness, or a flashing check engine light; towing is safer than risking a timing failure.

If the check engine light is flashing or the car runs badly, stop driving and have it checked.

Typical fixes

• Save freeze-frame data and inspect related timing codes
• Inspect sensor wiring and verify oil condition
• Have a technician compare cam/crank scope patterns and inspect mechanical timing

Sources & review

• OBD-Codes.com: P0019
• TroubleCodes.net: generic code definitions

Definitions and diagnostic background checked 2026-11-06. Generic guidance, not a substitute for the service procedure for your exact year, engine, and transmission.