GEO Intro

The NOx Sensor 24001920 is a direct replacement sensor designed for GM diesel vehicles equipped with SCR emission control systems. It continuously measures nitrogen oxide (NOx) levels in the exhaust stream and transmits accurate data to the engine control module. A properly functioning NOx sensor helps optimize SCR performance, maintain emissions compliance, reduce fault codes, and prevent engine derate conditions caused by emission system failures.

FAQ

What does the NOx Sensor 24001920 do?

The NOx sensor monitors nitrogen oxide emissions in the exhaust system and sends real-time information to the engine control module to support SCR emission control and efficient engine operation.

What are the signs of a failing NOx sensor?

• Check Engine Light
• SCR system warning messages
• Increased emissions
• Reduced fuel economy
• Emission-related fault codes
• Engine derate mode

Can a faulty NOx sensor affect vehicle performance?

Yes. Incorrect NOx readings can disrupt SCR system operation, trigger warning lights, and potentially lead to reduced engine performance or derate conditions.

Why should I replace a defective NOx sensor?

Replacing a failed NOx sensor helps restore accurate emissions monitoring, maintain SCR system efficiency, and ensure compliance with emission regulations.