FixVault

Home › Jeep › 2018 › Grand Cherokee Trackhawk › Repair and Diagnosis › Engine Performance › System › 6.2L - DTCS P000B To P0140 › DTC Troubleshooting › P0139-O2 Sensor 1/2 Slow Response › Set Condition

Set Condition

If the PCM does not detect a rich to lean switch within a specific time during a decel fuel shutoff event, the monitor will fail.