Code No. P0004: Fuel Flow Regulator High




TROUBLE JUDGMENT



  • Regulation solenoid valve short-circuited to positive (stuck closed).

FAIL SAFE FUNCTION



  • Engine performances limites (-50%)

PROBABLE CAUSE



  • Failed fuel flow regulator
  • Failed electrical harness in fuel flow regulator circuit (Refer to Symptom Procedure - Fuel Flow Regulator System )