P0200 - OBD-II Trouble Code

Auto Systems and Repair

Injector Circuit Malfunction

Our emissions expert has put together the following information about the P0200 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.

OBD II Fault Code

  • OBD II P0200

Fault Code Definition
The Powertrain Control Module (PCM) uses special transistors—called "drivers"—to turn the Fuel Injectors on and off in the Fuel Injection System. Code P0200 indicates a problem in the operation of the Fuel Injector Circuit.

Symptoms

  • Check Engine Light will illuminate
  • In some cases, the engine will misfire and have a rough idle
  • In some cases, the vehicle will get poor fuel economy

Common Problems That Trigger the P0200 Code

  • Defective Fuel Injector
  • Faulty or corroded Fuel Injector, wiring, and/or connections
  • Plugged Fuel Injector
  • Dirt in the Fuel Injector

Common Misdiagnosis

  • Fuel Injector or PCM is replaced when the problem is in the wiring and connections
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