OBD Guide
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P1346

Variable Valve Timing Sensor Bank 1 Range/Performance Problem

P1346 is an OBD-II diagnostic trouble code meaning: Variable Valve Timing Sensor Bank 1 Range/Performance Problem. Common causes: vvt sensor malfunction, problems with wiring or connectors. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine idling
  • Check Engine light comes on
  • The engine can operate in emergency mode

Causes

  • VVT sensor malfunction
  • Problems with wiring or connectors
  • Low oil level or poor quality
  • VVT system is dirty or damaged
  • Engine control unit malfunction

How to Fix

  1. Check the level and condition of the engine oil
  2. Inspect the VVT sensor and its connections
  3. Check the integrity of wiring and connectors
  4. Test the VVT sensor using diagnostic equipment
  5. If necessary, replace the VVT sensor

Related codes

P1345P1347P1349

Error P1346 by Vehicle Brand

BMWBuickCadillacChevroletChryslerGMGMCLexusOldsmobileSaturnVolkswagen

FAQ

What does the P1346 code mean?

P1346 is an OBD-II diagnostic trouble code that indicates: Variable Valve Timing Sensor Bank 1 Range/Performance Problem

What causes a P1346 error code?

The most common causes of P1346 include: VVT sensor malfunction; Problems with wiring or connectors; Low oil level or poor quality; VVT system is dirty or damaged.

How do I fix a P1346 diagnostic trouble code?

To fix P1346: Check the level and condition of the engine oil. Inspect the VVT sensor and its connections. Check the integrity of wiring and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1346?

Yes, but get it checked soon

How much does it cost to fix P1346?

The estimated repair cost for P1346 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

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