P1187
Fuel Pressure Monitoring - Regulator Valve Stick
P1187 is an OBD-II diagnostic trouble code meaning: Fuel Pressure Monitoring - Regulator Valve Stick. Common causes: fuel pressure regulator valve jammed, open or short circuit in control circuit. Estimated repair cost: $28–89.
Symptoms
- Unstable engine idling
- Reduced engine power
- Increased fuel consumption
- Difficulty starting the engine
- Check Engine Light Is On
Causes
- Fuel pressure regulator valve jammed
- Open or short circuit in control circuit
- Poor contact in valve connector
- Fuel system contamination
- Engine control unit malfunction
How to Fix
- Check the valve control circuit for opens and short circuits.
- Clean or replace fuel pressure regulator valve
- Check connectors and connections
- Test the operation of the fuel pump
- If necessary, replace the fuel pressure regulator
Related codes
Error P1187 by Vehicle Brand
FAQ
What does the P1187 code mean?
P1187 is an OBD-II diagnostic trouble code that indicates: Fuel Pressure Monitoring - Regulator Valve Stick
What causes a P1187 error code?
The most common causes of P1187 include: Fuel pressure regulator valve jammed; Open or short circuit in control circuit; Poor contact in valve connector; Fuel system contamination.
How do I fix a P1187 diagnostic trouble code?
To fix P1187: Check the valve control circuit for opens and short circuits.. Clean or replace fuel pressure regulator valve. Check connectors and connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1187?
Limited driving only, diagnose soon
How much does it cost to fix P1187?
The estimated repair cost for P1187 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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