English-first OBD-II diagnostics Static, fast, focused lookup pages
CD CheckDTC Garage-grade fault lookup
Open P0300 Try AI Diagnose
Home / Codes / P0019
DTC code page

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

Quick answer: The ECU sees an implausible crank-to-cam relationship on the Bank 2 B-cam circuit.

Drivers also search this fault as cam crank correlation bank 2 sensor B, bank 2 sensor B correlation code, P0019 timing chain code.

Severity: high Family: powertrain Related paths: 16
Meaning

What P0019 usually means

P0019 fills the last obvious Bank 2 correlation gap beside P0018. It means the crank and the Bank 2 B-cam events no longer line up the way the ECU expects. That can happen from chain wear, incorrect timing alignment, phaser trouble on the B-cam side, or a sensor signal problem serious enough to fake a timing mismatch. Either way, the code belongs in the timing-system branch first and the sensor-lottery branch second.

Fast triage

Start here before chasing parts

  • Scan first: save freeze-frame and pending codes before clearing anything.
  • Confirm the complaint: compare the stored code with current drivability symptoms.
  • Use context: trims, live data, and related codes usually narrow the fault faster than guesswork.
  • Work simplest to hardest: leaks, connectors, maintenance items, and known patterns before expensive components.
Initial checks

What to check first

  • Treat startup rattle and recent timing work as major clues, not background noise.
  • Identify whether Sensor B corresponds to the exhaust-cam side on the specific engine before chasing the wrong component.
  • Check for companion codes such as P0024, P0025, P0009, or P0340 to see whether correlation, control, or signal issues are stacking together.
Driving risk

Can you keep driving?

P0019 is high urgency because Bank 2 correlation faults rarely stay small if a chain, phaser, or alignment problem is really behind them.

High urgency: If symptoms are active, reduce driving and diagnose quickly before secondary damage builds.
Likely causes

Common causes behind this code

  • Timing chain stretch or slack affecting Bank 2 B-cam correlation
  • Incorrect mechanical timing after chain, head, or camshaft work
  • Bank 2 B-cam phaser sticking far enough to violate expected correlation
  • Cam or crank signal issue creating false relationship errors
  • Oil-pressure or oil-quality problem upsetting VVT position control

Cause phrases often tied to this code: timing chain drift, bank 2 exhaust phaser issue, incorrect timing installation, signal distortion, oil control fault.

Diagnostic order

Suggested workflow

  1. Save freeze-frame data and watch whether the engine struggles more on cold start or hot restart.
  2. Inspect oil condition and verify correct viscosity because slow phaser response can help create this code.
  3. Check Bank 2 cam and crank sensor connectors, wiring routing, and any recent repair disturbance.
  4. Use scan data to compare commanded versus actual Bank 2 cam timing and overall sync behavior.
  5. If the pattern still points to timing drift, verify mechanical timing and phaser condition on the affected side.
Avoid guesswork

Common mistakes

  • Assuming Sensor B means the sensor is automatically bad.
  • Ignoring Bank 2 exhaust-cam context and testing intake-side hardware first.
  • Clearing the code after it disappears on a warm restart while the cold-start timing problem remains.
Repair path

Practical fix guidance

  • Repair the verified timing, phaser, or signal fault that explains the correlation loss.
  • If recent engine work preceded the code, verify timing marks and phaser setup before buying new electronics.
  • After repair, confirm clean cold starts and stable Bank 2 cam-crank correlation under repeat conditions.
Vehicle context

Affected brands in this MVP

Brand hubs help broaden internal linking now and can evolve into make-specific diagnostic notes later.

Aliases and common searches

English phrases tied to P0019

Useful when the driver knows the wording but not the exact DTC yet.

  • cam crank correlation bank 2 sensor B
  • bank 2 sensor B correlation code
  • P0019 timing chain code
Related search intent

Queries this page can answer naturally

  • P0019 code meaning
  • what does P0019 mean
  • bank 2 sensor B correlation
  • P0019 startup rattle
FAQ

Quick questions about P0019

Is P0019 usually the exhaust-cam side?

On many engines Sensor B maps to the exhaust-cam side, but always verify your engine layout before making that assumption.

Can P0019 be intermittent?

Yes. Wear, oil-condition problems, or heat-related signal issues can make correlation faults appear only during certain starts or load conditions.

Should I replace the Bank 2 cam sensor first?

Only if testing supports it. P0019 often belongs to a wider timing or phaser story, especially with startup rattle or companion VVT codes.