P021F OBD-II: Cylinder 12 Injection Timing
Get diagnosis and repair information for trouble code P021F
OBD II Fault Code
- OBD II P021F
OBD-II Code Decreased engine performance is defined as a Cylinder 12 Injection Timing
The engine control module (PCM) has special transistors called "drivers" to turn the Fuel Injectors on and off in the Fuel Injection System. If the PCM cannot control the fuel injector, it will set code P021F.
Decreased engine performance Symptoms
- Decreased engine performance
- Increased fuel consumption
Common Problems That Trigger the P021F Code
- Fuel injector failure
- Powertrain Control Module (PCM) failure
- Wiring issue
Common Repairs Needed for the P021F Code
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