NOX Sensor Issue - Dodge Cummins Diesel Forum
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post #1 of 8 (permalink) Old 10-19-2019, 03:00 PM Thread Starter
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NOX Sensor Issue

Hey guys can someone direct me to the proper area to ask questions about my NOX sensor please.


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I drive the dreaded 2013 Ram 2500 6.7 4WD
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post #2 of 8 (permalink) Old 10-19-2019, 04:13 PM
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Hey guys can someone direct me to the proper area to ask questions about my NOX sensor please.
you can ask right here

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post #3 of 8 (permalink) Old 10-19-2019, 06:18 PM Thread Starter
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Ok, cool. I have a code P0030 and after looking it up I ordered a new NOx temp sensor number one position and replaced it. Iíve cleared the codes with two different devices but the code remains and now it has my truck in limp mode 5 mph. Any suggestions.
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post #4 of 8 (permalink) Old 10-19-2019, 07:08 PM
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Ok, cool. I have a code P0030 and after looking it up I ordered a new NOx temp sensor number one position and replaced it. Iíve cleared the codes with two different devices but the code remains and now it has my truck in limp mode 5 mph. Any suggestions.
Thatís an O2 sensor 1/1 fault. Exactly what sensor did you replace? NOX, temp, or O2, and which one (from closest to furthest from engine)?
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post #5 of 8 (permalink) Old 10-19-2019, 11:44 PM
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It's a fault in the O2 sensor heater circuit.

Could be in the sensor, could be in the harness, either a ground fault or hot wire short.

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post #6 of 8 (permalink) Old 10-20-2019, 10:12 AM Thread Starter
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I changed the NOX/O2 Sensor right down from the Turbo. It’s located in the Elbow coming off the Turbo. I also checked the plug on the Harness. I have one wire hot+ and the other 3 are -ground without the sensor being plugged in to the Harness.

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post #7 of 8 (permalink) Old 10-21-2019, 08:51 AM
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What did you use to get the sensor out? I need to change that one. Thx

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post #8 of 8 (permalink) Old 10-21-2019, 10:43 AM Thread Starter
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Pull the Right front Tire and inner Fenderwell off. Take the Heat Shield off that protects the Sensor (8mm) then use a 22 mm wrench to remove sensor. A 22 mm is a little bit too big in a 21 mm will not fit, I also could not get any standard wrench to fit properly either. I took a little black tape and wrap around one side of my 22 mm open end to take up the slack. May even have to put a small cheater pipe on the other end of the wrench because itís in their tight.

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