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 ...

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 ...

Dyno tuning is great. But, a dyno-tuned engine can't always be tuned for the stress it might see on the street, let alone something like the continued abuse of, say, a track day. This is especially ...

SAE International Journal of Engines, Vol. 11, No. 4 (2018), pp. 435-446 (12 pages) In a modern diesel aftertreatment system, a sensor for nitrogen oxides (NOx) placed downstream of the selective ...

A knock sensor is an engine management component in modern internal combustion engines. It is designed to detect the sound of knocking or pinging in the engine, indicating an engine problem such as ...

There are a million and one things that could go wrong with a car engine. In old times, it was solely up to the owner and/or technician to drudge through possible issues until they determined what was ...