| 3GR |
Third Gear |
|
| 4GR |
Fourth Gear |
|
| A/C |
Air Conditioning |
|
| ACL |
Air Cleaner |
|
| AIR |
Secondary Air Injection |
Inject with compressor |
| AP |
Accelerator Pedal |
|
| B+ |
Battery Positive Voltage |
|
| BARO |
Barometric Pressure |
|
| CAC |
Charge Air Cooler |
|
| CC |
Oxidation Catalytic Converter |
|
| CIS |
Continuous Fuel Injection System |
|
| CKP |
Crankshaft Position Sensor |
|
| CLS |
Closed Loop System |
|
| CMP |
Camshaft Position Sensor |
|
| CPP |
Clutch Pedal Position |
|
| CTP |
Closed Throttle Position |
|
| Dl |
Distributor Ignition |
|
| DLC |
Data Link Connector |
|
| DLI |
Distributorless Ignition |
|
| DTC |
Diagnostic Trouble Code(s) |
|
| DTM |
Diagnostic Test Mode |
Diagnostic trouble codes depend on the diagnostic test mode |
| ECM |
Engine Control Module |
|
| ECT |
Engine Coolant Temperature |
|
| EGR |
Exhaust Gas Recirculation |
|
| El |
Electronic Ignition |
Controlled by the ECM/PCM |
| EM |
Engine Modification |
|
| EVAP |
Evaporative Emission |
|
| FC |
Fan Control |
|
| FP |
Fuel Pump |
|
| FPR |
Fuel Pump Relay |
In some models, there is a fuel pump relay that controls pump speed. That relay is now called the fuel pump relay (speed) |
| GEN |
Generator |
|
| GND |
Ground |
|
| HO2S |
Heated Oxygen Sensor |
With heater |
| IAC |
Idle Air Control |
|
| IAT |
Intake Air Temperature |
|
| ICM |
Ignition Control Module |
|
| KS |
Knock Sensor |
|
| LAMBSE |
A calculation made by the PCM from HO2S inputs and helps maintain a 14.7:1 air/fuel ratio during closed loop operation. Short Term Fuel Trim is commonly referred to as LAMBSE |
|
| MAF |
Mass Air Flow Sensor |
|
| MAP |
Manifold Absolute Pressure |
|
| MFI |
Multiport Fuel Injection |
|
| MIL |
Malfunction Indicator Lamp |
|
| O2S |
Oxygen Sensor |
|
| OBD |
On-Board Diagnostic |
|
| OL |
Open Loop |
|
| PAIR |
Pulsed Secondary Air Injection |
Pulsed Injection |
| PCM |
Powertrain Control Module |
Device that controls engine and powertrain |
| PNP |
Park/Neutral Position |
|
| PSP |
Power Steering Pressure |
|
| SAPV |
Secondary Air Pulse Valve |
|
| SFI |
Sequential Multipoint Fuel Injection |
|
| TB |
Throttle Body |
|
| TC |
Turbocharger |
|
| TCC |
Torque Converter Clutch |
|
| TCM |
Transmission (Transmission) Control Module |
|
| TP |
Throttle Position Sensor |
|
| TR |
Transmission (Transmission) Range |
|
| TWC |
Three Way Catalytic Converter |
|
| VAF |
Volume Air Flow Sensor |
|
| VR |
Voltage Regulator |
|
| VSS |
Vehicle Speed Sensor |
|
| WOT |
Wide Open Throttle Position |
|
| WU-TWC |
Warm Up Three Way Catalytic Converter |
Directly Connected to exhaust manifold |