Fuel Pressure Sensor/Switch: Testing and Inspection

INSPECTION
- Connect the Special Service Tools (SST)s (Engine Signal Monitor) to the Powertrain Control Module (PCM).




- Apply vacuum to the fuel tank pressure sensor by using a vacuum pump. Measure the pressure at PCM terminal 3A.




- If not as specified, replace the fuel tank pressure sensor.

USING THE NGS
- Connect the SSTs New Generation Star (NGS) tester to the data link connector-2.




- Select the PID/DATA MONITOR AND RECORD function.
- Apply vacuum to the fuel tank pressure sensor by using a vacuum pump.
- Select "FTP V" on the NGS display. The NGS measures and shows the voltage.




- If no as specified, replace the fuel tank pressure sensor.