| 2WS |
2 Wheel Steering |
| 4WS |
4 Wheel Steering |
| A/C |
Air Conditioner |
| ABDC |
After Bottom Dead Centre |
| ABS |
Antilock Braking System |
| AC |
Air con |
| ACC |
Accessories |
| ASPEC |
American Specification |
| ATDC |
After Top Dead Centre |
| ATF |
Automatic Transmission Fluid |
| ATX |
Automatic transmission |
| AWD |
All Wheel Drive |
| BAC |
Bypass Air Control |
| BBDC |
Before Bottom Dead Centre |
| BHP |
Brake Horse Power |
| BTDC |
Before Top Dead Centre |
| CAI |
Cold Air Intake |
| CEL |
Check Engine Light |
| CHP |
Crank Horse Power |
| CLT |
Coolant Temp Sensor |
| CPU |
Central Processing Unit (not the ECU) |
| CSI |
Cold Start Injector |
| CTQ |
Crank Torque |
| CU |
Control Unit |
| EC-AT |
Electronically Controlled Automatic Transmission |
| ECU |
Engine Control Unit |
| EFI |
Electronic Fuel Injector |
| EGI |
Electronic Gasoline Injection |
| EGR |
Exhaust Gas Recirculation |
| ESA |
Electronic Spark Advance |
| ESPEC |
European Specification |
| ESPS |
Engine Speed sensing Power Steering |
| EVAP |
Evaporative Emissions Control System |
| EW |
Electric windows |
| EX |
Exhaust |
| FWD |
Front Wheel Drive |
| GND |
Ground |
| HLA |
Hydraulic Lash Adjusters (similar to tappets) |
| HP |
Horsepower (could be wheel or crank) |
| HU |
Hydraulic Unit |
| I/H/E |
Intake/Headers/Exhaust |
| IAC |
Intake/Idle Air Control Valve |
| IAS |
Idle Air Screw |
| IAT |
Intake Air Temp Sensor |
| IC |
Integrated Circuit |
| ICE |
In Car Entertainment |
| IG |
Ignition |
| IN |
Intake |
| ISCl |
Idle Speed Control |
| JDM |
Japanese Domestic Market |
| JSPEC |
Japanese Specification |
| LED |
Light Emitting Diode |
| LH |
Left Hand |
| MAF |
Mass air flow |
| MTX |
Manual Transmition |
| O/D |
Overdrive |
| P/S |
Power Steering |
| PAS |
Power assisted steering |
| PCM |
Powertrain Control Module |
| PCV |
Positive Crankcase Ventilation |
| PRC |
Pressure Regulator Control |
| RWD |
Rear Wheel Drive |
| SC |
Supercharger |
| SST |
Special Service Tool |
| TB |
Throttle Body |
| TDC |
Top Dead Centre |
| TEN |
Test ENgine |
| TNS |
Tail, Number, Side (lights) |
| TPS |
Throttle Position Sensor |
| USDM |
United States Domestic Market |
| VAF |
Vane Air Flow |
| VAPS |
Variable Adjust Power Steering |
| VC |
Valve Cover |
| VCG |
Valve Cover Gasket |
| VRIS |
Variable Resonance Induction System |
| VSS |
Vehicle Speed Sensor |
| WHP |
Wheel Horse Power |
| WTQ |
Wheel Torque |
