P0017 — Crankshaft/camshaft position correlation — bank 1, sensor B

P0017 concerns the crankshaft-to-camshaft relationship for bank 1, sensor B, rather than sensor A covered by P0016. Confirm the sensor's location and intake/exhaust identification from the exact engine documentation. The diagnostic task is to separate mechanical timing, variable-timing response and signal integrity. Replacing a position sensor solely because its name appears in the code is not justified.

Affected system: Engine timing and position correlation

Symptoms

• Hard starting, potentially under particular temperature conditions.
• Uneven running or limited power.
• Engine warning; any associated mechanical noise increases the need for assessment.

Possible causes

• Incorrect mechanical timing or wear in the timing drive.
• Cam phaser or VVT solenoid failing to follow commands.
• Incorrect oil, low level or a control-circuit oil-pressure problem.
• Implausible crank/cam feedback from the sensor, trigger wheel, connector or wiring.

What to check

• Save all codes and note whether the fault began after timing work or an oil change.
• Identify bank 1 and sensor B from engine documentation before locating parts.
• Check oil level/specification; stop testing for severe noise or an oil-pressure warning.
• Inspect crank/cam connectors and wiring; compare signals and synchronisation with suitable scan or oscilloscope equipment.
• Monitor requested/actual cam positions and VVT response under the prescribed conditions.
• If signals are sound but correlation remains offset, request mechanical timing and oil-pressure checks; verify the result after repair.

Also written as: P0017-00, P001700, PO017 (some scan tools add the fault-type byte, e.g. -00).