Engine Controls - Tests W/Codes: Introduction: Terminology
Due to Federal government requirements, manufacturers may use names and acronyms for systems and components different than those used in previous years. The following table will help eliminate confusion when dealing with these components and systems.
SAE TERMINOLOGY
| Former Name Or Acronym | New Name Or Acronym |
|---|---|
| Airflow Sensor (AFS) | Mass Airflow (MAF) Sensor |
| Air Temperature Sensor | Intake Air Temperature (IAT) Sensor |
| CHECK ENGINE Light | Malfunction Indicator Light (MIL) |
| Crank Angle Sensor | Camshaft Position (CMP) Sensor |
| Oxygen (O2) Sensor | Heated Oxygen Sensor (HO2S) |
| Pressure Sensor (PS) | Manifold Absolute Pressure (MAP) Sensor |
| Throttle Position Sensor (TPS) | Throttle Position (TP) Sensor |
| Trouble Codes | Diagnostic Trouble Codes DTC(s) |
| Water Temp. Sensor (WTS) | Engine Coolant Temp. (ECT) Sensor |