What does the nitrogen oxide sensor do?
NOx sensors monitor the level of nitrogen oxide being emitted by a diesel vehicle to ensure compliance with emissions regulations. Most engines feature two NOx sensors: an upstream and downstream sensor.
What does the downstream NOx sensor do?
The NOx sensor downstream of the SCR catalyst is used to monitor the performance of the catalyst. Accurate NOx measurement is in high demand to comply with increasingly strict NOx emissions regulations. The NOx sensor is also capable of measuring O2 concentration, just like a wide range air-fuel sensor.
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.
Does NOx sensor affect performance?
Like every component in a car, Nox sensors can fail and need fixing or replacement. Once the sensor fails, it can cause several issues, like poor engine performance, erratic acceleration, bad gas mileage, and the vehicle going into limp mode.
What will a bad NOx sensor cause?
When a nitrogen oxide sensor fails on a truck with a diesel engine, bad things start to happen. The motor may begin to run rough and fuel consumption can drastically increase. Next, the motor may go into derate, or “limp mode,” and finally, the truck may break down and stop running altogether.
Can you drive with a faulty NOx sensor?
Driving with a faulty Nox sensor for an extended period will cause several drivability issues. It may cause poor engine power output, erratic idling, sudden engine misfire, and bad gas mileage. Before the engine starts projecting any of these problems, the ECU will trigger an engine warning light on the dashboard.
What are symptoms of faulty NOx sensor?
Can I drive my truck with a bad NOx sensor?
Of course, you can drive with a bad Nox sensor. However, I do not recommend it. Driving with a faulty Nox sensor for an extended period will cause several drivability issues. It may cause poor engine power output, erratic idling, sudden engine misfire, and bad gas mileage.
How do I know if my NOx sensor is bad?
Can I drive with a bad NOx sensor?
What are the aftertreatment technologies used in Cummins?
Cummins’ leading aftertreatment technologies are designed around proven core technologies. With a decade of experience with oxidation catalysts, particulate filters and SCR technology, our aftertreatment systems help optimize your entire engine system to operate more efficiently.
What is a Cummins sensor?
Cummins Sensors provide a whole solution package, enabling system integration while meeting critical regulations. Cummins provides sensors that support a multitude of critical components on your engine – from controlling the speed of the turbocharger to assisting the level of NOx taken into the aftertreatment system.
What is a control system on a Cummins Engine?
Control systems by Cummins can be used as a stand-alone module to enhance engine control capabilities or integrated right into the engine control module. These systems monitor changes in pressure, temperature and oxides of nitrogen (NOx) while adjusting engine and aftertreatment operation for peak performance with the required emissions control.
What is a diesel particulate filter on a Cummins?
The Cummins Particulate Filter contains the Diesel Particulate Filter (DPF) which collects and oxidizes carbon to remove particulate matter (PM) by more than 90%; the Diesel Oxidation Catalyst (DOC) aids in this process and is also contained in the Cummins Particulate Filter.