Abbreviations

A

A/C Air conditioning
AP Accelerator pedal
ACL Air Cleaner

C

CAC Charge air cooler
CFI Continuous fuel injection
CKP Crankshaft position
CMP Camshaft position
CTP Closed throttle position

D

DI Distributor ignition
DLC Data link connector
DTC diagnostic trouble code
DTM Diagnostic test mode
DSA Dynamic Stability Assistance

E

ECM Engine control module
ECT Engine coolant temperature
EGR Exhaust gas recirculation
EI Electronic ignition
EVAP Evaporative emission

F

FC Fan control
FP Fuel pump

G

GEN Generator

H

HO2S Heated oxygen sensor

I

IAC Idle air control
IAT Intake air temperature
ICM Ignition Control Module

K

KS Knock sensor

M

MAF Mass air flow
MAP Manifold absolute pressure
MFI Multiport fuel injection
MIL Malfunction indicator lamp

N

NTC Negative temperature co-efficient

O

O2S Oxygen sensor (unheated)
OBD On-board diagnostic

P

PAIR Pulsed secondary air injection
PNP Park/neutral position
PTC Positive temperature co-efficient

R

RPM Engine speed

S

SRI Service reminder indicator
SRS Supplemental restraint system (airbag)
ST Scan tool

T

TB Throttle body
TC Turbocharger
TCM Transmission control module
TDC Top dead center
TP Throttle position
TWC Three-way catalytic converter

V

VSS Vehicle speed sensor

W

WOT Wide open throttle