P021F
Cylinder 12 Injection Timing
P021F is an OBD-II diagnostic trouble code meaning: Cylinder 12 Injection Timing. Common causes: malfunction of the fuel injector of cylinder 12, problems with the injector wiring harness. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Misfire in cylinder 12
Causes
- Malfunction of the fuel injector of cylinder 12
- Problems with the injector wiring harness
- Engine ECU malfunction
- Mechanical damage to the injection system
- Engine timing problems
How to Fix
- Check the condition of the fuel injector of cylinder 12
- Check the integrity of the injector wiring harness
- Check the control signal from the computer
- Check engine timing
- If necessary, replace the injector or repair the wiring harness
Related codes
Error P021F by Vehicle Brand
FAQ
What does the P021F code mean?
P021F is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Injection Timing
What causes a P021F error code?
The most common causes of P021F include: Malfunction of the fuel injector of cylinder 12; Problems with the injector wiring harness; Engine ECU malfunction; Mechanical damage to the injection system.
How do I fix a P021F diagnostic trouble code?
To fix P021F: Check the condition of the fuel injector of cylinder 12. Check the integrity of the injector wiring harness. Check the control signal from the computer. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P021F?
Limited driving only, diagnose soon
How much does it cost to fix P021F?
The estimated repair cost for P021F is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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