OBD II Fault Code

  • OBD II P0273

OBD-II Code Decreased engine performance is defined as a Cylinder 5 Injector Circuit Low

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 P0273.

Decreased engine performance Symptoms

  • Decreased engine performance
  • Increased fuel consumption

Common Problems That Trigger the P0273 Code

  • Fuel injection control module (FICM) failure
  • Fuel injector failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue

Common Repairs Needed for the P0273 Code

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