Nox Sensor Fault
Nox Sensor Fault. In some instances, a car with a bad nox sensor will also give you an engine warning light outright. There are three main groups of reasons, why this error message can appear:

P221408 the nox sensor (cylinder bank 2) has a malfunction. The process for this fault code has to include testing of the adblue system for pressure and delivery of the urea. The nitrogen oxides (nox) sensor is a “smart device” consisting of three components.
This Usually Means That Your Nitrogen Oxide (Nox) Sensor Bank 2 Is Faulty, Open Or Shorted, Or Has A Poor Electrical Connection.
If the content of nox still is 0 ppm or/and becomes 0 ppm, the nox sensor is damaged (the sensor element has aged) and it (the sensor) has to be replaced. If the urea isn't entering the nox cat in the correct quantity, or is of poor concentration the nox sensors calculate this fault based on the nox content of the exhaust stream not being what is expected. Videos you watch may be added to.
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.
If a nox sensor fails, the vehicle can have multiple faults on the dashboard which will cap the power of your truck (limp mode). Should such fault/error be detected, vehicle ecu will start limp mode timer, and, after a certain number of hours, starts etc. So i'm very happy with the result.
Thankfully, Fixing A Nox Sensor Is Not That Difficult, But Can Be Expensive Depending On The Solution:
What happens when a nox sensor fails? In this video i check the module for power, ground and can high/can. The process for this fault code has to include testing of the adblue system for pressure and delivery of the urea.
Again, A Symptom Of This Fault Can Be Your Engine Warning Light Suddenly Coming On.
How to fix/prevent nox faults? Defects of nox sensor itself; May need to reset it with the computer as the engine management light is still up but it maybe latched until a reset.
Problems With Can Data Channel Communication.
The nitrogen oxides (nox) sensor is a “smart device” consisting of three components. 12c801 nox sensor, oxygen sensor before catalytic converter, plausibility: If playback doesn't begin shortly, try.
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