What does a NOx sensor do?

What does a NOx sensor do?

What does a NOx sensor do?

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.

How many NOx sensors does a 2015 Duramax have?

Registered. There are two NOx sensors so the tech will need to determine which one is bad.

What is a NOx sensor on a Duramax?

The NOx sensor is used to check the nitrogen oxide content of the exhaust to optimize exhaust and fuel economy.

Where is the NOx sensor located on a 2015 Duramax?

This NOx sensor is located upstream in the downpipe.

Can a NOx sensor be repaired?

The NOx sensor is a very complicated component and can be expensive to repair however, it’s often not actually the sensor which is causing the problem but the lambda probe inside the exhaust which tests the NOx levels which has malfunctioned, and this is something which can easily be replaced.

What does p11dc mean on a DTC?

P11DC The exhaust temperature sensor 4 is greater than 95°C (203°F). The engine speed is greater than 600 RPM. The battery voltage is greater than 11 V. The DPF regeneration is not active. The DTC runs continuously when the above conditions are met.

What to do if your car has a p11dc code?

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 P11DC code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

What does the p11dc mean on a Honda Accord?

P11DC Meaning. The reductant system uses two Nitrogen Oxide (NOx) sensors to monitor the amount of NOx in the engine’s exhaust gas. The first sensor is located at the outlet of the turbocharger and monitors the engine out NOx level.