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DTC code page

P0349: Camshaft Position Sensor A Circuit Intermittent (Bank 2)

Quick answer: The ECU sees the Bank 2 camshaft position sensor A signal dropping in and out intermittently.

Drivers also search this fault as intermittent bank 2 cam sensor code, bank 2 camshaft position sensor intermittent, bank 2 cam signal drops out.

Severity: high Family: powertrain Related paths: 11
Meaning

What P0349 usually means

P0349 means the Bank 2 cam signal is not failing all the time, but it drops out often enough to be caught as intermittent. That pattern strongly fits heat-soak sensor failure, loose connectors, oil contamination, or harness movement on one bank of the engine rather than a truly global cam-signal failure.

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

  • Ask whether the failure is worst hot, after restart, or after bumps because that timing matters on intermittent faults.
  • Inspect the Bank 2 cam sensor connector carefully instead of trusting a quick visual glance.
  • If P0017 or other Bank 2 timing clues also appear, keep mechanical timing in the conversation.
Driving risk

Can you keep driving?

P0349 deserves prompt diagnosis because intermittent Bank 2 cam-signal loss can create surprise stalling and repeat no-start complaints.

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

Common causes behind this code

  • Bank 2 cam sensor failing intermittently with heat or vibration
  • Loose, corroded, or oil-soaked connector on the Bank 2 circuit
  • Harness damage that opens only under movement
  • Intermittent Bank 2 timing variation or phaser instability
  • Voltage or ground loss that comes and goes

Cause phrases often tied to this code: heat-related bank 2 cam sensor, loose connector, oil in connector, intermittent wiring fault, bank-specific timing fluctuation.

Diagnostic order

Suggested workflow

  1. Match the code to the complaint pattern and temperature timing.
  2. Inspect and lightly manipulate the Bank 2 connector and harness while watching for signal dropout.
  3. Check scan data for Bank 2 sync loss during the actual bad event if possible.
  4. Test the sensor hot if the fault mainly appears after heat soak.
  5. Recheck for companion Bank 2 timing or VVT codes after the electrical issue is addressed.
Avoid guesswork

Common mistakes

  • Clearing the code after one good restart and assuming the fault is gone.
  • Ignoring oil contamination inside the connector on an intermittent Bank 2 code.
  • Stopping at sensor replacement when the engine still has Bank 2 correlation clues.
Repair path

Practical fix guidance

  • Fix the intermittent path directly and confirm the signal stays stable through repeated hot and cold cycles.
  • If the code returns with Bank 2 correlation faults, continue into timing inspection rather than declaring victory early.
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 P0349

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

  • intermittent bank 2 cam sensor code
  • bank 2 camshaft position sensor intermittent
  • bank 2 cam signal drops out
Related search intent

Queries this page can answer naturally

  • P0349 code meaning
  • what does P0349 mean
  • intermittent bank 2 cam sensor symptoms
  • bank 2 cam signal drops out hot
FAQ

Quick questions about P0349

Can P0349 be heat-related?

Yes. Many intermittent Bank 2 cam failures show up most clearly after the engine is hot.

How is P0349 different from P0345?

P0349 specifically points to a Bank 2 cam signal that drops in and out, while P0345 is the broader Bank 2 circuit fault.

Can P0349 be wiring instead of the sensor?

Absolutely. Loose terminals, oil contamination, and movement-sensitive harness faults are common causes.