nox sensor bank 1 location - Diesel Bombers

Chevy/GMC Duramax 2011 LML Discussion of Chevy and GMC Trucks with LML Duramax Turbo Diesel Engines

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Old 05-28-2014, 04:30 PM
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Join Date: Oct 2013
Posts: 3
Default nox sensor bank 1 location

2011 chevy 3500hd duramax setting p2201 code for bank 1 nox sensor but havent had any luck trying to find out where it is located! my automotive program only states its located in the left rear engine on exhaust! kinda bland reference when there is like 5 or 6 sensor back there!

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Old 07-21-2015, 11:19 PM
Diesel Fan
Join Date: Apr 2013
Location: Florida
Posts: 14

unplug them one by one mark them then you know lil bit of work .
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Old 07-22-2015, 10:14 AM
Jet A Fuel's Avatar
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Join Date: Aug 2009
Location: Georgia
Posts: 1,980
Default Nox sensor locations

Not sure if this is what you are looking for :

exhaust-system-description 2011.pdf
For some reason the picture didn't show up in the PDF file.

1. NOx Sensor 1
2. EGT 1
3. Diesel Oxidation Catalyst (DOC)
4. EGT 2
5. Selective Catalyst Reduction (SCR)
6. EGT 3
7. NOx Sensor 2
8. Diesel Particulate Filter (DPF)
9. EGT 4
10. Exhaust Cooler
11. DPF Differential Pressure Sensor
12. Reductant Heater (3)
13. Reductant Pressure Sensor
14. Reductant Level/Temperature Sensor
15. Reductant Purge Valve
16. Reductant Pump
17. Reductant Injector
18. Hydrocarbon Injector (HCI)

Last edited by Jet A Fuel; 07-22-2015 at 10:23 AM.
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Old 09-01-2015, 06:19 PM
Join Date: Sep 2015
Posts: 5

Directly behind the turbo on exhaust discharge, the Nox module is mounted on the firewall directly behind the fuse box on the drivers side, follow the wire over behind the turbo. It's inside the engine compartment if your laying on the cement its the wrong sensor.
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