What can cause a NOx sensor fault code?

NOx Sensor Failure Symptoms

  • Coolant temperature sensor.
  • Exhaust leak.
  • Mass air-flow sensor.
  • Oxygen sensor.

Where is the NOx sensor on a 2014 Duramax?

This NOx sensor is located in the downpipe.

Can you drive with bad NOx sensor?

In conclusion, you can drive with a bad knock sensor—that is, if you want to destroy your engine and get atrocious performance from your car. The moment you confirm that your knock sensor has seen better days, it would be wise to swap it right away with a high-quality replacement.

What is a NOx sensor on a Duramax?

NOx sensors monitor the level of nitrogen oxide being emitted by a diesel vehicle to ensure compliance with emissions regulations. Common causes of failure include soot buildup on the sensor, ECU water intrusion, and/or damage to the cable, which will cause the check engine light to illuminate.

How much does it cost to replace a NOx sensor?

U029D normally means Lost Communication With NOX Sensor ‘A’. 2 NOX sensor equipped in Dodge Ram Van. One seated behind turbo, 61955-44600, called as sensor bank A with dealer price US$700-US$900, is responsible for monitoring the engine out NOX level….Available Shipping Options.

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Where is the NOx sensor located?

The NOx sensor is part of the NOx reduction aftertreatment system used in diesel vehicles with urea based SCR systems. The sensor located upstream of the SCR catalyst directly measures the engine-out NOx gas concentration, which helps determine the optimum amount of urea injection.

What happens if NOx sensor fails?

If a NOx sensor fails, the vehicle can have multiple faults on the dashboard which will cap the power of your truck (Limp mode). As NOx sensors are directly linked to the SCR system, there will also be emission and general SCR system faults, which only add onto the list of issues.

How do you reset a NOx sensor?

Go to the System menu, select Engine, then choose the specifics for your vehicle and go to Functional Tests, followed by Special Functions. At the next screen pick Adaptations then scroll down to find Reset Learned Values Of NOx Sensor Upstream And Downstream Of SCR Catalytic Converter.

Is it safe to drive with a faulty NOx sensor?

A bad knock sensor may also not let the engine accelerate properly while driving on the highway, and cause the vehicle to lose fuel mileage. Once the computer realizes the knock sensor is not working properly, your vehicle will most likely lose power.

What to do if you get a p2203 code?

Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P2203 code is 1.0 hour of labor.

What does p2203 stand for in Powertrain Control Module?

The Powertrain Control Module ( PCM) monitors the NOx sensor and sets the code when the NOx sensor circuit voltage reading is not within the normal operating threshold for a specific engine bank. Need more information on how to fix the P2203 code?

What does p2203 mean on the NoX sensor?

P2203 Meaning. The Nitrogen Oxide (NOx) sensor measures the amount of nitric oxide and nitrogen oxide in the exhaust system. When the NOx sensor indicates that the storage capacity has been reached, the regeneration phase is initiated by the fueling management system.