OBD Guide

P349C

Cylinder 5 Deactivation/Intake Valve Performance

P349C is an OBD-II diagnostic trouble code meaning: Cylinder 5 Deactivation/Intake Valve Performance. Common causes: malfunction of the cylinder deactivation solenoid valve, mechanical damage to the intake valve. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Vibrations at idle
  • Check Engine Light Illuminates

Causes

  • Malfunction of the cylinder deactivation solenoid valve
  • Mechanical damage to the intake valve
  • Problems with hydraulic compensators
  • Engine control unit malfunction
  • Open or short circuit in control circuit

How to Fix

  1. Check the condition of the deactivation solenoid valve
  2. Diagnose the mechanical part of the intake valve
  3. Check hydraulic compensators
  4. Scan the control unit for other errors
  5. Check the integrity of the wiring harness

Related codes

Error P349C by Vehicle Brand

FAQ

What does the P349C code mean?

P349C is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Deactivation/Intake Valve Performance

What causes a P349C error code?

The most common causes of P349C include: Malfunction of the cylinder deactivation solenoid valve; Mechanical damage to the intake valve; Problems with hydraulic compensators; Engine control unit malfunction.

How do I fix a P349C diagnostic trouble code?

To fix P349C: Check the condition of the deactivation solenoid valve. Diagnose the mechanical part of the intake valve. Check hydraulic compensators. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P349C?

Yes, but get it checked soon

How much does it cost to fix P349C?

The estimated repair cost for P349C is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat