P34A3
Cylinder 12 Deactivation/Intake Valve Performance
P34A3 is an OBD-II diagnostic trouble code meaning: Cylinder 12 Deactivation/Intake Valve Performance. Common causes: malfunction of the cylinder deactivation system, electrical wiring problems. Estimated repair cost: $56–167.
Symptoms
- Loss of engine power
- Vibrations during engine operation
- Unstable idle
- Increased fuel consumption
- Check engine light comes on
Causes
- Malfunction of the cylinder deactivation system
- Electrical wiring problems
- Control module malfunction
- Mechanical damage to the cylinder
- Malfunction of cylinder valves
How to Fix
- Check the condition of the cylinder deactivation system
- Diagnose electrical wiring and connections
- Check engine control module
- Assess the mechanical condition of the cylinder and valves
- If necessary, replace faulty components
Related codes
Error P34A3 by Vehicle Brand
FAQ
What does the P34A3 code mean?
P34A3 is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Deactivation/Intake Valve Performance
What causes a P34A3 error code?
The most common causes of P34A3 include: Malfunction of the cylinder deactivation system; Electrical wiring problems; Control module malfunction; Mechanical damage to the cylinder.
How do I fix a P34A3 diagnostic trouble code?
To fix P34A3: Check the condition of the cylinder deactivation system. Diagnose electrical wiring and connections. Check engine control module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P34A3?
Yes, but get it checked soon
How much does it cost to fix P34A3?
The estimated repair cost for P34A3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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