Fuel Pressure Sensor B Circuit High

Where it lives

For P018D, the sensor sits on the circuit this code reports. The description of P018D reports a fault at the sensor.

Check these first

• A short to voltage on the sensor B signal wire
• A failed fuel pressure sensor B
• High fuel pressure from a stuck regulator
• A restricted fuel return line
• A faulty ECM input for sensor B

What to do next

1. Check the fuel pressure at the rail
2. Test the sensor B signal wire for a short to voltage
3. Inspect the fuel return line for a restriction
4. Check the fuel pressure regulator
5. Replace fuel pressure sensor B if it reads high
6. Clear the code and retest

Look up another code