P1189
Fuel Pressure Monitoring - Governor Deviation at Engine speed Too high
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Unstable engine operation at high speeds
- Loss of power during acceleration
- Increased fuel consumption
- Difficulty starting the engine
- The engine stalls when you press the gas pedal hard
Causes
- Fuel pump malfunction
- Problems with the fuel pressure regulator
- Clogged fuel filter
- Damage to fuel lines
- Fuel pressure sensor malfunction
How to Fix
- Check the fuel pressure in the system
- Replace the fuel filter if necessary
- Check the operation of the fuel pump
- Diagnose the fuel pressure regulator
- Check the integrity of the fuel lines