A/C

Air Conditioning

Air Conditioner

ACL

Air Cleaner

Air Cleaner, A/CL

AIR

Secondary Air Injection

Air Injection (AI)

AP

Accelerator Pedal

-

B+

Battery Positive Voltage

+B, Battery Voltage

BARO

Barometric Pressure

-

CAC

Charge Air Cooler

Intercooler

CARB

Carburetor

Carburetor

CFI

Continuous Fuel Injection

-

CKP

Crankshaft Position

Crank Angle

CL

Closed Loop

Closed Loop

CMP

Camshaft Position

Cam Angle

CPP

Clutch Pedal Position

-

CTOX

Continuous Trap Oxidizer

-

CTP

Closed Throttle Position

LL ON, Idle ON

DFI

Direct Fuel Injection

Direct Injection (DI./INJ)

DI

Distributor Ignition

-

DLC3

Data Link Connector 3

OBD II Diagnostic Connector

DTC

Diagnostic Trouble Code

Diagnostic Trouble Code

DTM

Diagnostic Test Mode

-

ECL

Engine Coolant Level

-

ECM

Engine Control Module

Engine Electronic Control Unit (ECU)

ECT

Engine Coolant Temperature

Coolant Temperature, Water Temperature (THW)

EEPROM

Electrically Erasable Programmable Read Only Memory

Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM)

EFE

Early Fuel Evaporation

Cold Mixture Heater (CMH), Heat Control Valve (HCV)

EGR

Exhaust Gas Recirculation

Exhaust Gas Recirculation (EGR)

EI

Electronic Ignition

Distributorless Ignition (DLI)

EM

Engine Modification

Engine Modification (EM)

EPROM

Erasable Programmable Read Only Memory

Programmable Read Only Memory (PROM)

EVAP

Evaporative Emission

Evaporative Emission Control (EVAP)

FC

Fan Control

-

FEEPROM

Flash Electrically Erasable Programmable Read Only Memory

-

FEPROM

Flash Erasable Programmable Read Only Memory

-

FF

Flexible Fuel

-

FP

Fuel Pump

Fuel Pump

GEN

Generator

Alternator

GND

Ground

Ground (GND)

HO2S

Heated Oxygen Sensor

Heated Oxygen Sensor (HO₂S)

IAC

Idle Air Control

Idle Speed Control (ISC)

IAT

Intake Air Temperature

Intake or Inlet Air Temperature

ICM

Ignition Control Module

-

IFI

Indirect Fuel Injection

Indirect Injection (IDL)

IFS

Inertia Fuel-Shutoff

-

ISC

Idle Speed Control

-

KS

Knock Sensor

Knock Sensor

MAF

Mass Airflow

Air Flow Meter

MAP

Manifold Absolute Pressure

Manifold Pressure Intake Vacuum

MC

Mixture Control

Electric Bleed Air Control Valve (EBCV)

Mixture Control Valve (MCV)

Electric Air Control Valve (EACV)

MDP

Manifold Differential Pressure

-

MFI

Multiport Fuel Injection

Electronic Fuel Injection (EFI)

MIL

Malfunction Indicator Lamp

Check Engine Light

MST

Manifold Surface Temperature

-

MVZ

Manifold Vacuum Zone

-

NVRAM

Non-Volatile Random Access Memory

-

O2S

Oxygen Sensor

Oxygen Sensor, O₂ Sensor (O₂S)

OBD

On-Board Diagnostic

On-Board Diagnostic System (OBD)

OC

Oxidation Catalytic Converter

Oxidation Catalytic Convert (OC), CCo

OL

Open Loop

Open Loop

PAIR

Pulsed Secondary Air Injection

Air Suction (AS)

PCM

Powertrain Control Module

-

PNP

Park/Neutral Position

-

PROM

Programmable Read Only Memory

-

PSP

Power Steering Pressure

-

PTOX

Periodic Trap Oxidizer

Diesel Particulate Filter (DPF)

Diesel Particulate Trap (DPT)

RAM

Random Access Memory

Random Access Memory (RAM)

RM

Relay Module

-

ROM

Read Only Memory

Read Only Memory (ROM)

RPM

Engine Speed

Engine Speed

SC

Supercharger

Supercharger

SCB

Supercharger Bypass

E-ABV

SFI

Sequential Multiport Fuel Injection

Electronic Fuel Injection (EFI), Sequential Injection

SPL

Smoke Puff Limiter

-

SRI

Service Reminder Indicator

-

SRT

System Readiness Test

-

ST

Scan Tool

-

TB

Throttle Body

Throttle Body

TBI

Throttle Body Fuel Injection

Single Point Injection

Central Fuel Injection (Ci)

TC

Turbocharger

Turbocharger

TCC

Torque Converter Clutch

Torque Converter

TCM

Transmission Control Module

Transmission ECU, ECT ECU

TP

Throttle Position

Throttle Position

TR

Transmission Range

-

TVV

Thermal Vacuum Valve

Bimetallic Vacuum Switching Valve (BVSV)

Thermostatic Vacuum Switching Valve (TVSV)

TWC

Three-Way Catalytic Converter

Three-Way Catalytic (TWC)

Manifold Converter

CC_RO

TWC+OC

Three-Way + Oxidation Catalytic Converter

CC_R + CCo

VAF

Volume Airflow

Air Flow Meter

VR

Voltage Regulator

Voltage Regulator

VSS

Vehicle Speed Sensor

Vehicle Speed Sensor

WOT

Wide Open Throttle

Full Throttle

WU-OC

Warm Up Oxidation Catalytic Converter

-

WU-TWC

Warm Up Three-Way Catalytic Converter

-

3GR

Third Gear

-

4GR

Fourth Gear

-