P0291 OBD II Trouble Code Cylinder 11 Injector Circuit Low DTC

Symptoms of P0291 OBD II Trouble Code

  • The check engine light will illuminate and code P0291 will set
  • The engine will run rougher than normal
  • A lack of power
  • A big drop in fuel economy will result

Common Causes of P0291 OBD II Trouble Code

  • Dirty fuel injector supplying the number eleven cylinder
  • Faulty fuel injector
  • Plugged fuel injector
  • Open or short in the fuel injector harness
  • Loose or corroded fuel injector connector