Fuel Pressure Sensor B Circuit

Where it lives

For P018A, the circuit described runs through the sensor. The description of P018A reports a fault at the sensor.

Check these first

• A failed fuel pressure sensor B
• An open or short in the sensor B wiring
• A corroded sensor B connector
• Low fuel pressure from a weak pump
• A faulty ECM input for sensor B

What to do next

1. Read fuel pressure sensor B on a scan tool
2. Inspect the sensor B connector and wiring
3. Test the sensor B signal circuit
4. Check the fuel pressure against spec
5. Replace fuel pressure sensor B if out of range
6. Clear the code and retest

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