P0544 Diagnostic Trouble Code Discussion for January 2019
Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 1)
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| Help Request | Posted | |
| 2008 Jeep Grand Cherokee Laredo 3.0L MIL Lamp on VIN: 1J8HR48M78 P0544: Egt b1s1. ... and sets code P0544. this indicates the pre-cat sensor/circuit problem. This vehicle does not have a pre-cat EGT sensor - only a post-cat EGT sensor. It as wiring up to the area of the post-cat sensor, but the connector has a factory plug in it and th... |
January 31, 2019 |
