P1189
Fuel Pressure Monitoring - Governor Deviation at Engine speed Too high
P1189 is an OBD-II diagnostic trouble code meaning: Fuel Pressure Monitoring - Governor Deviation at Engine speed Too high. Common causes: fuel pump malfunction, problems with the fuel pressure regulator. Estimated repair cost: $17–89.
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
Related codes
Error P1189 by Vehicle Brand
FAQ
What does the P1189 code mean?
P1189 is an OBD-II diagnostic trouble code that indicates: Fuel Pressure Monitoring - Governor Deviation at Engine speed Too high
What causes a P1189 error code?
The most common causes of P1189 include: Fuel pump malfunction; Problems with the fuel pressure regulator; Clogged fuel filter; Damage to fuel lines.
How do I fix a P1189 diagnostic trouble code?
To fix P1189: Check the fuel pressure in the system. Replace the fuel filter if necessary. Check the operation of the fuel pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1189?
Limited driving only, diagnose soon
How much does it cost to fix P1189?
The estimated repair cost for P1189 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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