Cherokee 2WD L4-150 2.5L VIN P MFI (1991)
Oxygen Sensor: Testing and Inspection
Disconnect the oxygen sensor electrical connector from the wiring harness, and connect an ohmmeter across terminals A and B of the sensors electrical
connector. Resistance value should be between 5 and 7 ohms. Replace the sensor if the resistance reading is not within the previous specifications or if
the ohmmeter indicates infinite resistance.
