B4000 2WD V6-4.0L OHV (1994)
Pressure Feedback Exhaust Sensor: Testing and Inspection
EGR DIFFERENTIAL PRESSURE FEEDBACK SENSOR INSPECTION
1. Disconnect the Powertrain Control Module (PCM) connector.
Special Service Tool (SST)-Break Out Box (Used For Voltage Pin Tests)
2. Connect the Special Service Tool (SST) "Break Out Box" to the PCM.
Test Specifications
3. Check the voltage at terminal 27 with a voltmeter.
4. If not as specified, replace the EGR Differential Pressure Feedback Sensor.