Cylinder 9 Pressure Sensor Circuit Range/Performance

Where it lives

For P2349, the description names the sensor as the part involved. The description of P2349 puts it on cylinder 9.

Check these first

• A cylinder 9 pressure reading outside its normal range
• A restricted or leaking cylinder 9 pressure sensor port
• High resistance in the cylinder 9 sensor circuit
• A failed cylinder 9 pressure sensor element

What to do next

1. Read cylinder 9 pressure on a scan tool and compare it to the other cylinders
2. Check the cylinder 9 sensor port for a restriction or leak
3. Test the cylinder 9 sensor circuit for added resistance
4. Perform a compression test on cylinder 9 to rule out mechanical faults
5. Replace the cylinder 9 pressure sensor if the circuit and compression test good
6. Clear the code and retest

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