A/C - Air Conditioner/conditioning
A/T - Automatic Transmission
ABS - Anti-lock Braking System
ARB - Anthony Robert Brown; Pneumatic differential locker; Common manuafacturer of off-road accessories for our vehicles based in Austrailia.
ATDC - After Top Dead Center (retarded timing)
ATF - Automatic Transmission Fluid
BHP - [color:"red"]Brake [/color] HorsePower
[color:"red"] Birfield Joint - a kind of cv joint [/color]
BTDC - Before Top Dead Center (advanced timing)
BJ - BALL JOINT
CFM - Cubic Feet per Minute (airflow measure)
CV Axle/Joint - Constant Velocity Axle/Joint
DOHC - Dual OverHead Cams
DOJ - Double Offset Joint - [color:"red"] another cv joint [/color]
ECS - Emissions Control System
ECU - Electronic Control Unit or Engine Control Unit, i.e. the computer
EFI - Electronic Fuel Injection
EGR - Exhaust Gas Recirculation valve/pipe/system, etc.
FBC - Feed Back Carburetor
FI - Fuel Injection
GenI, GenII, Gen2.5, GenIII - Model generations
HP - HorsePower
IAC - Idle Air Control servo or Stepper Motor (see also ISC)
[color:"red"] IPS - idle position switch often in the ISC or TPS [/color]
ISC - Idle Speed Control servo or Stepper Motor (see also IAC)
LCA - Lower Control Arm
LSD - Limited Slip Differential
LWB - Long WheelBase, i.e. the 4dr model
MPI - Multi-Port Injection
M/T - Manual Tansmission
OBD I/II - On-Board Diagnostics
P/L or PDL - Power Door Locks
P/S - Power Steering
P/W - Power Windows
SOHC - Single OverHead Cam
SWB - Short WheelBase, i.e. the 2dr model
TB - Throttle Body
TBI - Throttle Body Injection
TDC - Top Dead Center
TPS - Throttle Position Sensor
TQ - Torque
UCA - Upper Control Arm


Other lingo:

Cat = Catalytic Converter
Diff = Differential
Dizzy = Distributor
Oz = Australia, the land down-under.
Speedo = Speedometer, not swimsuit
T-case or X-case = Transfer Case
Tech = Mitsubish SUV&Tech Forum. Tech IS NOT Talk!
Talk = Mitsubishi Talk Forum, i.e. bla bla bla