Equus 3173 - Import Code Reader - Manual (Page 52)

Glossary
49 Chapter 6
INTRODUCTION
This Glossary contains definitions for abbreviations and terms
you may find in this manual or in your vehicle service manual.
GLOSSARY OF TERMS AND ABBREVIATIONS
A/C – Air Conditioning
A/T – Automatic Transmission
AAC – Auxiliary Air Control
BARO – Barometric Pressure
CKP – Crankshaft Position
CMP – Camshaft Position
CTP – Closed Throttle Position
DOHC – Dual Overhead Cam
ECT – Engine Coolant Temperature
ECM / ECU – Engine Control Module / Unit (vehicle’s computer)
EFI – Electronic Fuel Injection
EGR – Exhaust Gas Recirculation
EVAP – Evaporative Emissions Control
F.I. – Fuel Injection
HO2S – Heated Oxygen Sensor
IAT – Intake Air Temperature
L/H – Left Hand
LED – Light Emitting Diode
M/T – Manual Transmission
MAF – Mass Air Flow
MAP – Manifold Absolute Pressure
O2S – Oxygen Sensor
OBD I – On Board Diagnostics First Generation
R/H – Right Hand
SOHC – Single Overhead Cam
TCM – Transmission Control Module
TPS – Throttle Position Sensor
VAF – Vane Air Flow
VSS – Vehicle Speed Sensor