What to do if you lose communication with NoX sensor?

What to do if you lose communication with NoX sensor?

The first things to check are the fuses and wiring. Take a look for any obvious loose wires or blown fuses for an easy fix.

What causes NOx sensors faulty before and after SCR?

So i was advised that most likely NOx sensors became faulty before and after SCR catalyzer . Well anyway replaced those two NOx expesive sensors with not luck, check light comes back = ( after restart. Please help. What causes it to fail? Replaced and no error codes,and then after engine restarted error comes back on

Is the second NoX sensor after the silencer?

Only realized this after I saw the ‘second’ NOX sensor after what I thought was a silencer, but in fact was a second cat.

Can you see the NoX sensor after the cat?

Bought a new NOX sensor at the extortionate price of $560 and just can not see where it is fitted. Can see the sensor after the cat very clearly. Can anyone give me any guidance as to where the one before the cat is situated and what has to be taken apart to get at it?

What should I do if my NoX sensor is not working?

Follows the manufacturer pinpoint tests for the diagnosis and replaces the NOx sensor if the regeneration does not cause the NOx sensor to work normal again Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired.

What happens when the NOx code is set in the ECM?

The Check Engine Light will be illuminated and the code is set in the ECM memory as a fault. The ECM will reduce fuel advance to the injectors to lower the chances of NOx forming in the combustion chamber. The engine may run rich and blow black smoke. The fuel mileage may be more than before failure.

When to replace reductant fluid and NoX sensor?

Removes and replaces the reductant fluid with fresh fluid and runs a regeneration to clean out any soot in the exhaust and NOx sensor Follows the manufacturer pinpoint tests for the diagnosis and replaces the NOx sensor if the regeneration does not cause the NOx sensor to work normal again

Is there a NOx malfunction on a 2013 gu813?

NOX malfunction. Derate mode. Hello everyone I’m new to this forum and have a problem with a 2013 GU813. The truck is in derate mode. DEF gauge reads empty, tank is full. Engine light is on. Code NOX malfunction data valid but higher than normal.