OBD2/SAE Acronyms
| KOEC | - | Key On, Engine Cranking |
| KOEO | - | Key On, Engine Off |
| KOER | - | Key On, Engine Running |
| KS | - | Knock Sensor |
| KSM | - | Knock Sensor Module |
| LT | - | Long Term Fuel Trim |
| MAF | - | Mass Airflow Sensor |
| MAP | - | Manifold Absolute Pressure Sensor |
| MC | - | Mixture Control |
| MDP | - | Manifold Differential Pressure |
| MFI | - | Multiport Fuel Injection |
| MIL | - | Malfunction Indicator Lamp |
| MPH | - | Miles per Hour |
| MST | - | Manifold Surface Temperature |
| MVZ | - | Manifold Vacuum Zone |
| NVRAM | - | Nonvolatile RAM |
| NOX | - | Oxides of Nitrogen |
| O2S | - | Oxygen Sensor |
| OBD | - | Onboard Diagnostics |
| OBD I | - | Onboard Diagnostics, First Generation |
| OBD II | - | Onboard Diagnostics, Second Generation |
| OC | - | Oxidation Catalyst |
| ODM | - | Output Device Monitor |
| OL | - | Open Loop |
| OSC | - | Oxygen Sensor Storage |
| PAIR | - | Pulsed Secondary Air Injection |
| PCM | - | Power Train Control Module |
| PCV | - | Positive Crankcase Ventilation |
| PNP | - | Park/Neutral Switch |
| PROM | - | Programable Read Only Memory |
| PSA | - | Pressure Switch Assembly |
| PSP | - | Power Steering Pressure |
| PTOX | - | Periodic Trap Oxidizer |
| RAM | - | Random Access Memory |
| RM | - | Relay Module |
| ROM | - | Read Only Memory |
| RPM | - | Revolutions per Minute |
| SC | - | Supercharger |
| SCB | - | Supercharger Bypass |
| SDM | - | Sensing Diagnostic Mode |
| SFI | - | Sequential Fuel Injection |
| SRI | - | Service Reminder Indicator |
| SRT | - | System Readiness Test |
| ST | - | Short Term Fuel Trim |
| TB | - | Throttle Body |
| TBI | - | Throttle Body Injection |
| TC | - | Turbocharger |
| TCC | - | Torque Converter Clutch |
| TCM | - | Transmission or Transaxle Control Module |
| TFP | - | Throttle Fluid Pressure |
| TP | - | Throttle Position |
| TPS | - | Throttle Position Sensor |
| TVV | - | Thermal Vacuum Valve |
| TWC | - | Three Way Catalyst |
| TWC+OC | - | Three Way + Oxidation Catalytic Converter |
| VAF | - | Volume Airflow |
| VCM | - | Vehicle Control Module |
| VR | - | Voltage Regulator |
| VS | - | Vehicle Sensor |
| VSS | - | Vehicle Speed Sensor |
| WU-TWC | - | Warm Up 3 Way Catalytic Converter |
| WOT | - | Wide Open Throttle |
© 2000 - 2002 Vincent T. Ciulla
