One of the common causes of lost power and performance in diesel-powered vehicles is a malfunctioning nitrogen oxides (NOx) sensor. These sensors monitor NOx levels in the vehicle’s exhaust. If they ...

General Motors has issued a service update for certain 2021 Chevy Silverado HD and 2021 GMC Sierra HD pickups that may have been delivered with a damaged diesel nitrogen oxide sensor. The problem: in ...

Knock sensors are devices used in internal combustion engines to detect engine knock or detonation. The knock sensor detects vibrations and sends a signal to the engine control module (ECM), to ...

Vehicles that burn petrol or diesel emit a type of pollution called NOx, which is linked to most of the hundreds of annual deaths attributed to air pollution from vehicles. Real-world testing shows ...