P0200 OBD II Trouble Code Injector Circuit Malfunction

Detailed information on troubleshooting and repairing a P0200 DTC code which refers to a fuel injector circuit malfunction. Also includes links to relevant forum topics on the code.

Symptoms of P0200 OBD II Trouble Code

  • MIL (Malfunction Indicator Lamp) illumination
  • Engine misfire at idle or at highway speed
  • Engine may start and stall or not start at all
  • Cylinder misfire codes may be present

Common Causes of P0200 OBD II Trouble Code

  • Open or shorted injector
  • Injector low internal resistance (basically an injector that works, but is out of specs)
  • Grounded driver circuit
  • Open driver circuit
  • Driver circuit shorted to voltage
  • Wiring harness intermittently shorting against underhood components