I ,for example, am sometimes stuck when it comes to a post that is full of them,and find that i am scratching my head sometimes,whilst also knowing that said post could be very useful to me.
I am not asking anyone to stop using them,far from it, but it may be useful to me,and possibly others if this post was dedicated to them. Please post up what you know,and i will add them to the o p.
2T - Usually applied to 2 stroke oil
4T - Sometimes used for 4 stroke oil
ABS - Anti-lock Braking System
ACC - Auto Climate Control
AFR - Air to Fuel Ratio (the ratio of the mass of air used by the engine, compared to the mass of fuel)
APP - Accelerator Pedal Position
APV - Auxiliary Port Valve (the additional intake port present on the higher-power 231 engines)
BHP - Brake Horse Power (usually measured at the crank / e shaft)
BP - Bridge Port
CAN - Controller Area Network (the digital network used by control modules to communicate)
CC - Cruise Control
CEL - Check Engine Light
COFS - Clean Oil Feed System (Ryan Rotary Performance device similar to Sohn system)
CPP - Clutch Pedal Position
CT - Coolant Temperature
DLC - Data Link Connector (OBD2 connector)
DSC - Dynamic Stability Control
DTC - Diagnostic Trouble Code
EBD - Electronic Brake force Distribution
ECU - Engine Control Unit
EGR - Exhaust Gas Recirculation (we don't have this)
EMOP - Electronic Metering Oil Pump (R3 version of OMP)
EPAS - Electric Power Assisted Steering
ES - Eccentric Shaft (a rotary's "crank" shaft)
ESS - Eccentric Shaft Sensor (points at the toothed wheel at the front of the ES)
FBP - Full Bridge Port
FL22 - Mazda's specification of very long life coolant
FWD - Front Wheel Drive (shopping trolleys
)FWHP - FlyWheel Horse Power
HBP - Half Bridge Port
HFS - Heated Front Screen
HHP - Hub Horse Power (OK, this isn't usually used, but it should be!)
HO2S - Heated Oxygen Sensor
HVAC - Heating Veintilation & Air Conditioning
IAT - Intake Air Temperature
JDM - Japanese Domestic Market (models or individual cars built to be sold specifically in Japan)
LIM - Lower intake manifold
LSD - Limited-Slip Differential
LTFT - Long Term Fuel Trim
MAF - Mass Air Flow sensor (pokes into the intake tube near the accordian tube)
MAP - Manifold Air (or Absolute) Pressure sensor (we don't actually have this sensor)
MIL - Malfunction Indicator Light (see CEL)
MSP - Multi Side Port (as in the RX-8 engine designation "13B-MSP")
O2S - Oxygen Sensor (aka Lambda sensor)
OAT - Organic Acid Technology (a type of coolant)
OBD - On-board Diagnostics
OMP - Oil Metering Pump (the pump that supplies the rotor oil injectors)
OP - Original poster (the person who wrote the first post in the thread on a forum)
OT - Oil Temperature
PAS - Power Assisted Steering
PCM - Powertrain Control Module (the ECU (Engine Control Unit) of the car)
PID - Parameter Identifier (identifies a piece of diagnostic data from OBD)
PP - Peripheral Port
PPF - Power Plant Frame (the girder that connects the gearbox to the differential)
PS - Power Steering
R3 - The series 2 version of the RX8 available in the UK from 2009
RON - Research Octane Number (for fuel)
RWD - Rear Wheel Drive (like an RX-8)
RWYB - Run What Ya Brung (Usually relates to Drag Racing but can also be Tracks Days or Drifting)
S1 - Series 1, the original version of the RX8, released in 2003
SAI - Secondary Air Injection (the air pump that injects air into the exhaust manifold during cold starts, to heat up the catalyst)
S-DAIS - Sequential Dynamic Air Intake System (term describing the combined SSV, VDI, APV & VFAD system)
SP - Street Port
SRS - Suplementary Restraint System (Air bags!)
SSV - Secondary Shutter Valve (One of the intake control valves on the intake manifold)
STFT - Short Term Fuel Trim
TC - Traction Control
TPMS - Tyre Pressure Monitoring System
TPS - Throttle Position Sensor
UIM - Upper intake manifold
VDI - Variable Dynamic-effect Intake (a valve that open at high revs to link the two intake tracts and provide "dynamic air charging effect")
VFAD - Variable Fresh Air Duct (system used on 231 models to shorten the pre-airbox intake length at higher revs)
VSS - Vehicle Speed Signal
WHP - Wheel Horse Power (Measured by rollers running on the car's tyres)
WOT - Wide Open Throttle
