| AP |
Accelerator Pedal |
| ACL |
Air Cleaner |
| A/C |
Air Conditioning |
| BARO |
Barometric Pressure |
| B+ |
Battery Positive Voltage |
| CAC |
Charge Air Cooler |
| CL |
Closed Loop |
| CMP sensor |
Camshaft Position Sensor |
| CTP |
Closed Throttle Position |
| CPP |
Clutch Pedal Position |
| CFI |
Continuous Fuel Injection |
| CKP sensor |
Crankshaft Position Sensor |
| DLC |
Data Link Connector |
| DTM |
Diagnostic Test Mode |
| DTC |
Diagnostic Trouble Code |
| DLI |
Distributorless Ignition |
| El |
Electronic Ignition |
| ECT |
Engine Coolant Temperature |
| EM |
Engine Modification |
| EVAP |
Evaporative Emission |
| EGR |
Exhaust Gas Recirculation |
| FC |
Fan Control |
| FF |
Flexible Fuel |
| 4GR |
Fourth Gear |
| FP |
Fuel Pump |
| FTP |
Fuel Tank Pressure |
| GEN |
Generator |
| GND |
Ground |
| HO2S |
Heated Oxygen Sensor (With Heater) |
| IAC |
Idle Air Control |
| IAT |
Intake Air Temperature |
| KS |
Knock Sensor |
| MIL |
Malfunction Indicator Lamp |
| MAP |
Manifold Absolute Pressure |
| MAF sensor |
Mass Airflow Sensor |
| MFI |
Multiport Fuel Injection |
| OBD |
On Board Diagnostic |
| OL |
Open Loop |
| OC |
Oxidation Catalytic Converter |
| O2S |
Oxygen Sensor |
| PID |
Parameter Identification |
| PNP |
Park/Neutral Position |
| PCV |
Positive Crankcase Ventilation |
| PCM |
Powertrain Control Module |
| PSP |
Power Steering Pressure |
| PAIR |
Pulsed Secondary Air Injection (Pulsed Injection) |
| AIR |
Secondary Air Injection (Injection With Air Pump) |
| SFI |
Sequential Multiport Fuel Injection |
| 3GR |
Third Gear |
| TB |
Throttle Body |
| TP sensor |
Throttle Position Sensor |
| TCC |
Torque Converter Clutch |
| TCM |
Transmission (Transaxle) Control Module |
| TR |
Transmission (Transaxle) Range |
| TC |
Turbocharger |
| TWC |
Three Way Catalytic Converter |
| VSS |
Vehicle Speed Sensor |
| VR |
Voltage Regulator |
| VAF sensor |
Volume Airflow Sensor |
| WU-TWC |
Warm Up Three Way Catalytic Converter |
| WOP |
Wide Open Throttle |