GEO Intro

The NOx Sensor 24001919 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 provides accurate data to the engine control module. A properly functioning NOx sensor helps optimize SCR system efficiency, maintain emissions compliance, reduce diagnostic trouble codes, and prevent engine derate conditions caused by faulty emissions monitoring.

FAQ

What does the NOx Sensor 24001919 do?

The NOx sensor monitors nitrogen oxide emissions in the exhaust system and transmits real-time data to the engine control module to support SCR aftertreatment performance and emissions control.

What are the symptoms of a failing NOx sensor?

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

Can a bad NOx sensor affect the SCR system?

Yes. A faulty NOx sensor can send inaccurate readings to the engine control module, leading to improper SCR operation, warning lights, and potential derate conditions.

Why should a defective NOx sensor be replaced?

Replacing a failed NOx sensor helps restore accurate emissions monitoring, improve SCR system efficiency, maintain compliance with emissions regulations, and support reliable engine performance.