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ACG
Alternator
A/F
Air Fuel Ratio
API
American Petroleum Institute
Approx.
Approximately
Assy.
Assembly
ATDC
After Top Dead Center
ATF
Automatic Transmission Fluid
ATT
Attachment
BAT
Battery
BDC
Bottom Dead Center
BTDC
Before Top Dead Center
BARO
Barometric Pressure
CKP
Crankshaft Position
Comp.
Complete
CMP
Camshaft Position
CYL
Cylinder
DLC
Data Link Connector
ECT
Engine Coolant Temperature
ECM
Engine Control Module
EOP
Engine Oil Pressure
EX
Exhaust
F
Front or Forward
GND
Ground
IAB
Intake Air Bypass
IAC
Idle Air Control
IAT
Intake Air Temperature
I.D.
Inside Diameter
IG or IGN
Ignition
IN
Intake
INJ
Injection
L.
Left
MAP
Manifold Absolute Pressure
MIL
Malfunction Indicator Lamp
O.D.
Outside Diameter
OP
Optional Part
PGM-FI
Programmed-Fuel Injection
P/N
Part Number
Qty
Quantity
R.
Right
SAE
Society of Automotive Engineers
SCS
Service Check Signal
STD
Standard
SW
Switch
TDC
Top Dead Center
TP
Throttle Position
Abbreviations
Bl
Black
G
Green
Br Brown
Lg Light green
Y
Yellow
R
Red
O
Orange
P
Pink
Bu Blue
W White
Lb Light blue
Gr Gray