P349D
Cylinder 6 Deactivation/Intake Valve Performance
P349D is an OBD-II diagnostic trouble code meaning: Cylinder 6 Deactivation/Intake Valve Performance. Common causes: malfunction of the cylinder deactivation solenoid valve, valvetrain hydraulic problems. Estimated repair cost: $17–89.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Reduced engine power
- Check Engine Light Illuminates
- Vibrations at idle
Causes
- Malfunction of the cylinder deactivation solenoid valve
- Valvetrain hydraulic problems
- Low oil pressure
- Mechanical damage to valves
- Wiring or ECU problems
How to Fix
- Check the level and condition of the engine oil
- Diagnose the operation of deactivation solenoid valves
- Check the oil pressure in the system
- Inspect the valve mechanism for damage
- Check the integrity of the electrical control circuits
Related codes
Error P349D by Vehicle Brand
FAQ
What does the P349D code mean?
P349D is an OBD-II diagnostic trouble code that indicates: Cylinder 6 Deactivation/Intake Valve Performance
What causes a P349D error code?
The most common causes of P349D include: Malfunction of the cylinder deactivation solenoid valve; Valvetrain hydraulic problems; Low oil pressure; Mechanical damage to valves.
How do I fix a P349D diagnostic trouble code?
To fix P349D: Check the level and condition of the engine oil. Diagnose the operation of deactivation solenoid valves. Check the oil pressure in the system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P349D?
Yes, but get it checked soon
How much does it cost to fix P349D?
The estimated repair cost for P349D is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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