Glossary
From EvoEcu
2byte/1byte load/rpm
Refers to real time load or RPM from ECU Official 2byte Thread
A/C - Air Con
Air Conditioning is use to lower air temperature inside the car
AIT - Air Intake Temperature
Temperature of air after intercooler is measured before going into intake manifold.
AFR - Air/Fuel Ratio
The ratio of air to fuel present during combustion. For example an AFR of 14.7 actually means 14.7 parts air to 1 part fuel.
Baro - Barometer/Barometric
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BCS - Boost Control System
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BDEL - Boost Desired Engine Load
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BTDC - Before Top Dead Center
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BWGD - Base Wastegate Duty
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CEL/SES - Check Engine Light/Service Engine Soon
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DLL - Data Log Lab
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DSM - Diamond Star Motors
Refers to generation of DSM from 1990-1999 such as Mitsubishi Eclipses, Eagle Talons and Plymouth Lasers.
ECU - Engine Control unit
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EDM - European Domestic Market
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EGR - Exhaust Gas Recirculation
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IAT - Intake Air Temperature
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Internal ID - ECU Internal Idendity
Internal ID (from ECUFlash) is identification of ECU ID. The ID can derived the Evo model such as 88590015 Patched Mods
ICS - Inter Cooler Spray
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IDC - Injector Duty Cycle
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IGN - Ignintion
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IPW - Injector Pulse Width
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JDM - Japanese Domestic Market
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LTFT - Long Term Fuel Trim
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MAF - Mass Air Flow
Measurement of air volume (in Hz) from air intake
MAP - Manifold Absolute Pressure
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MUT - Multi Use Tester
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NLTS - No Lift To Shift
No Lift To Shift is a feature patched by TephraMod which allow the driver to keep the car at WOT whilst shifting base on present conditions (Load/TPS/Speed/Clutch Down).
02/NB0 - Oxygen Sensor (Narrow Band)
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RPM - Rev Per Minute
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SAS - Speed Adjusting Screw
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STFT - Short Term Fuel Trim
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TBEC - Turbo Boost Error Correction
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TPS - Throttle Position Sensor
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USDM - United States Domestic Market
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VE - Volumetric Efficiency
Refers to efficiency of the engine moving the charge in and out of the cylinders. More info from Wikipedia
WB02 - Wideband Oxygen Sensor
Wideband sensor produced 0-5v feedback to ECU or meter. The a/f signal is accurately measure as oppose to narrowband sensor. Please see Wide Band Air Fuel Meter for variety of widebands.
WGDC - Wastegate Duty Cycle
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WGDCCorr - Wastegate Duty Cycle Correction
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WOT - Wide Open Throttle
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