OBD II Fault Code

  • OBD II P02CD

OBD-II Code Decreased engine performance is defined as a Cylinder 1 Fuel Injector Offset Learning At Max Limit

The engine control module (PCM) uses multiple sensors to determine the required amount of fuel needed to keep the engine running efficiently. If the PCM cannot achieve the desired balance between fuel and air, it will set P02CD.

Decreased engine performance Symptoms

  • Decreased engine performance
  • Increased fuel consumption

Common Problems That Trigger the P02CD Code

  • Damaged or contaminated spark plug
  • Engine sensor failure
  • Exhaust leak
  • Fuel injector failure
  • Powertrain Control Module (PCM) software needs to be updated

Common Repairs Needed for the P02CD Code

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