All emission related terms used in this publication in accordance with SAE J1930 are listed. Accordingly, new terms, new acronyms/abbreviations and old terms are listed in the following chart.
NEW TERM
| NEW ACRONYM/ ABBREVIATION
| OLD TERM
|
Air cleaner
| ACL
| Air cleaner
|
Barometric pressure
| BARO
| ***
|
Barometric pressure sensor-BCDD
| BAROS-BCDD
| BCDD
|
Camshaft position
| CMP
| ***
|
Camshaft position sensor
| CMPS
| Crank angle sensor
|
Canister
| ***
| Canister
|
Carburetor
| CARB
| Carburetor
|
Charge air cooler
| CAC
| Intercooler
|
Closed loop
| CL
| Closed loop
|
Closed throttle position switch
| CTP switch
| Idle switch
|
Clutch pedal position switch
| CPP switch
| Clutch switch
|
Continuous fuel injection system
| CFI system
| ***
|
Continuous trap oxidizer system
| CTOX system
| ***
|
Crankshaft position
| CKP
| ***
|
Crankshaft position sensor
| CKPS
| ***
|
Data link connector
| DLC
| ***
|
Diagnostic test mode
| DTM
| Diagnostic mode
|
Diagnostic test mode selector
| DTM selector
| Diagnostic mode selector
|
Diagnostic test mode I
| DTM I
| Mode I
|
Diagnostic test mode II
| DTM II
| Mode II
|
Diagnostic trouble code
| DTC
| Malfunction code
|
Direct fuel injection system
| DFI system
| ***
|
Distributor ignition system
| DI system
| Ignition timing control
|
Early fuel evaporation-mixture heater
| EFE-mixture heater
| Mixture heater
|
Early fuel evaporation system
| EFE system
| Mixture heater control
|
Electrically erasable programmable read only memory
| EEPROM
| ***
|
Electronic ignition system
| EI system
| Ignition timing control
|
Engine control
| EC
| ***
|
Engine control module
| ECM
| ECCS control unit
|
Engine coolant temperature
| ECT
| Engine temperature
|
Engine coolant temperature sensor
| ECTS
| Engine temperature sensor
|
Engine modification
| EM
| ***
|
Engine speed
| RPM
| Engine speed
|
Erasable programmable read only memory
| EPROM
| ***
|
Evaporative emission canister
| EVAP canister
| Canister
|
Evaporative emission system
| EVAP system
| Canister control solenoid valve
|
Exhaust gas recirculation valve
| EGR valve
| EGR valve
|
Exhaust gas recirculation control-BPT valve
| EGRC-BPT valve
| BPT valve
|
Exhaust gas recirculation control-solenoid valve
| EGRC-solenoid valve
| EGR control solenoid valve
|
Exhaust gas recirculation temperature sensor
| EGRT sensor
| Exhaust gas temperature sensor
|
EGR temperature sensor
|
Flash electrically erasable programmable read only memory
| FEEPROM
| ***
|
Flash erasable programmable read only memory
| FEPROM
| ***
|
Flexible fuel sensor
| FFS
| ***
|
Flexible fuel system
| FF system
| ***
|
Fuel pressure regulator
| ***
| Pressure regulator
|
Fuel pressure regulator control solenoid valve
| ***
| PRVR control solenoid valve
|
Fuel trim
| FT
| ***
|
Heated Oxygen sensor
| HO2S
| Exhaust gas sensor
|
Idle air control system
| IAC system
| Idle speed control
|
Idle air control valve-air regulator
| IACV-air regulator
| Air regulator
|
Idle air control valve-auxiliary air control valve
| IACV-AAC valve
| Auxiliary air control (AAC) valve
|
Idle air control valve-FICD solenoid valve
| IACV-FICD solenoid valve
| FICD solenoid valve
|
Idle air control valve-idle up control solenoid valve
| IACV-idle up control solenoid valve
| Idle up control solenoid valve
|
Idle speed control-FI pot
| ISC-FI pot
| FI pot
|
Idle speed control system
| ISC system
| ***
|
Ignition control
| IC
| ***
|
Ignition control module
| ICM
| ***
|
Indirect fuel injection system
| IFI system
| ***
|
Intake air
| IA
| Air
|
Intake air temperature sensor
| IAT sensor
| Air temperature sensor
|
Knock
| ***
| Detonation
|
Knock sensor
| KS
| Detonation sensor
|
Malfunction indicator lamp
| MIL
| Check engine light
|
Manifold absolute pressure
| MAP
| ***
|
Manifold absolute pressure sensor
| MAPS
| ***
|
Manifold differential pressure
| MDP
| ***
|
Manifold differential pressure sensor
| MDPS
| ***
|
Manifold surface temperature
| MST
| ***
|
Manifold surface temperature sensor
| MSTS
| ***
|
Manifold vacuum zone
| MVZ
| ***
|
Manifold vacuum zone sensor
| MVZS
| ***
|
Mass air flow sensor
| MAFS
| Air flow meter
|
Mixture control solenoid valve
| MC solenoid valve
| Air-fuel ratio control solenoid valve
|
Multiport fuel injection system
| MFI system
| Fuel injection control
|
Nonvolatile random access memory
| NVRAM
| ***
|
On board diagnostic system
| OBD system
| Self-diagnosis
|
Open loop
| OL
| Open loop
|
Oxidation catalyst
| OC
| Catalyst
|
Oxidation catalytic converter system
| OC system
| ***
|
Oxygen sensor
| O2S
| Exhaust gas sensor
|
Park position switch
| ***
| Park switch
|
Park/neutral position switch
| PNP switch
| Park/neutral switch Inhibitor switch Neutral position switch
|
Periodic trap oxidizer system
| PTOX system
| ***
|
Positive crankcase ventilation
| PCV
| Positive crankcase ventilation
|
Positive crankcase ventilation valve
| PCV valve
| PCV valve
|
Powertrain control module
| PCM
| ***
|
Programmable read only memory
| PROM
| ***
|
Pulsed secondary air injection control solenoid valve
| PAIRC solenoid valve
| AIV control solenoid valve
|
Pulsed secondary air injection system
| PAIR system
| Air induction valve (AIV) control
|
Pulsed secondary air injection valve
| PAIR valve
| Air induction valve
|
Random access memory
| RAM
| ***
|
Read only memory
| ROM
| ***
|
Scan tool
| ST
| ***
|
Secondary air injection pump
| AIR pump
| ***
|
Secondary air injection system
| AIR system
| ***
|
Sequential multiport fuel injection system
| SFI system
| Sequential fuel injection
|
Service reminder indicator
| SRI
| ***
|
Simultaneous multiport fuel injection system
| ***
| Simultaneous fuel injection
|
Smoke puff limiter system
| SPL system
| ***
|
Supercharger
| SC
| ***
|
Supercharger bypass
| SCB
| ***
|
System readiness test
| SRT
| ***
|
Thermal vacuum valve
| TVV
| Thermal vacuum valve
|
Three way catalyst
| TWC
| Catalyst
|
Three way catalytic converter system
| TWC system
| ***
|
Three way + oxidation catalyst
| TWC + OC
| Catalyst
|
Three way + oxidation catalytic converter system
| TWC + OC system
| ***
|
Throttle body
| TB
| Throttle chamber SPI body
|
Throttle body fuel injection system
| TBI system
| Fuel injection control
|
Throttle position
| TP
| Throttle position
|
Throttle position sensor
| TPS
| Throttle sensor
|
Throttle position switch
| TP switch
| Throttle switch
|
Torque converter clutch solenoid valve
| TCC solenoid valve
| Lock-up cancel solenoid Lock-up solenoid
|
Transmission control module
| TCM
| A/T control unit
|
Turbocharger
| TC
| Turbocharger
|
Vehicle speed sensor
| VSS
| Vehicle speed sensor
|
Volume air flow sensor
| VAFS
| Air flow meter
|
Warm up oxidation catalyst
| WU-OC
| Catalyst
|
Warm up oxidation catalytic converter system
| WU-OC system
| ***
|
Warm up three way catalyst
| WU-TWC
| Catalyst
|
Warm up three way catalytic converter system
| WU-TWC system
| ***
|
Wide open throttle position switch
| WOTP switch
| Full switch
|
***: Not applicable