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Lost communication faults are common for NOx sensors. Cummins NOx sensors are a microprocessor equipped “Smart Device” that communicates over the J1939 datalink. They have 4 wires going to the NOx sensor module. A 12VDC or 24VDC power & ground, and two J1939 wires. The power and ground wires...

I have a 2005 Nissan Altima. I have some issues that I’ve pinpointed to these two sensors but don’t know which one is the culprit nor do I even know the difference between the sensors. Symptoms: Difficulty starting up. It will start up everytime but it’s very rough. And I usually have to have...

I have a 2005 Nissan Altima. I have some issues that I’ve pinpointed to these two sensors but don’t know which one is the culprit nor do I even know the difference between the sensors. Symptoms: Difficulty starting up. It will start up everytime but it’s very rough. And I usually have to have...

Lost communication faults are common for NOx sensors. Cummins NOx sensors are a microprocessor equipped “Smart Device” that communicates over the J1939 datalink. They have 4 wires going to the NOx sensor module. A 12VDC or 24VDC power & ground, and two J1939 wires. The power and ground wires...