OBD II Fault Code

  • OBD II P02EF

OBD-II Code Decreased engine performance is defined as a Cylinder 2 Injector Circuit Range/Performance

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 for cylinder number two, it will set code P02EF.

Decreased engine performance Symptoms

  • Decreased engine performance
  • Increased fuel consumption

Common Problems That Trigger the P02EF Code

  • Fuel injection control module (FICM) failure
  • Fuel injector failure
  • Wiring issue

Common Repairs Needed for the P02EF Code

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