Pump/Tune Mismatch

• Verify stock chip ID number and ID number on the injection pump

  • 5068 pump needs a 5068 tune

  • All other pumps need a 5521 tune

• Incorrect injection pump timing (TDCO Offset)

  • Pump needs timed correctly

Missing PMD Resistor

• This will cause rough idling and high Idle RPM

• The Instructions sheet sent with your PCM covers this

Incorrect injection pump timing (TDCO Offset)

• Pump needs timed correctly