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Performance Tuning Beginner and advanced tuning | Tools of the trade

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Unread 02-23-2013, 06:17 PM   #1
Rich Z
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Location: Crawfordville, FL
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Name : Rich Zuchowski
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Default Tuning acronyms

As I've been reading over this tuning stuff, I was finding myself stumbling sometimes over the various acronyms these guys would throw around with wild abandon that I didn't have a clue about what they meant. So I had to make up a cheat sheet that I could refer to when I hit one I didn't remember what it actually meant.

A
  • ABS - Antilock Brake System
  • AFR - Air Fuel Ratio
  • AIR - Secondary Air Injection

B
  • BARO - Barometric Pressure
  • BCM - Body Control Module
  • BEN - Base Efficiency Numerator
  • BHP - Brake Horsepower

C
  • CAC - Charge Air Cooler
  • CARB - California Air Resources Board
  • CAS - Crank Angle Sensor
  • CC - Catalytic Converter
  • CCP - Controlled Canister Purge
  • CCV - Canister Control Valve
  • CFI - Continuous Fuel Injection
  • CFM - Cubic Feet per Minute
  • CID - Component ID
  • CID - Cubic Inch Displacement
  • CKP - Crankshaft Position
  • CL - Closed Loop
  • CMP - Camshaft Position
  • COP - Coil On Plug Ignition
  • CP - Canister Purge
  • CTP - Closed Throttle Position

D
  • DBC - Drive By Cable
  • DBW - Drive By Wire
  • DFCO - Deceleration Fuel Cut Off
  • DFI - Direct Fuel Injection
  • DMA - Direct Memory Access
  • DTC - Diagnostic Trouble Code
  • DTM - Diagnostic Test Mode

E
  • EBCM - Electronic Brake Control Module
  • EBTCM - Electronic Brake Traction Control Module
  • EC - Engine Control
  • ECL - Engine Coolant Level
  • ECM - Engine Control Module
  • ECT - Engine Coolant Temperature
  • EECS - Evaporative Emissions Control System
  • EFE - Early Fuel Evaporation System
  • EFI - Electronic Fuel Injection
  • EGR - Exhaust Gas Recirculation
  • EGRT - Exhaust Gas Recirculation Temperature
  • ESC - Electronic Spark Control
  • EST - Electronic Spark Timing
  • ETC - Electronic Throttle Control
  • EV-ETS - Electric Vehicle Energy Transfer System
  • EVAP - Evaporative Emission System
  • EVRV - Electronic Vacuum Regulator Valve for EGR

F
  • FFTC - Freeze Frame Trouble Codes
  • FI - Fuel Injection
  • FT. LB. - Foot Pound
  • FT - Fuel Trim
  • FTC - Fuel Trim Cell #
  • FUBAR - Farked Up Beyond All Recognition

G
  • GND - Ground
  • GPS - Grams Per Second
  • GVM - Gross Vehicle Mass

H
  • HEGO - Heated Exhaust Gas Oxygen Sensor
  • Hg - Mercury
  • HO2S - Heated Oxygen Sensor
  • HVAC - Heating Ventilation and Air Conditioning

I
  • IA - Intake Air
  • IAC - Idle Air Control
  • IAT - Intake Air Temperature
  • ICM - Ignition Control Module
  • IFI - Indirect Fuel Injection
  • IFS - Inertia Fuel Shutoff
  • IGN - Ignition
  • IIIBDFI - If It Isn't Broke, Don't Fix It
  • ISC - Idle Speed Control

J

K
  • kHz - Kilohertz
  • KISS - Keep It Simple, Stupid
  • KOEC - Key On, Engine Cranking
  • KOEO - Key On, Engine Off
  • KOER - Key On, Engine Running
  • kPa - Kilopascals
  • Km - kilometers
  • KR - Knock Retard
  • KS - Knock Sensor
  • KSM - Knock Sensor Module

L
  • LTFT - Long Term Fuel Trim
  • LTIT - Long Term Idle Trim

M
  • MAF - Mass Air Flow
  • MAP - Manifold Absolute Pressure
  • MDP - Manifold Differential Pressure
  • MHz - Megahertz
  • MIL - Malfunction Indicator Lamp
  • MPG - Miles Per Gallon
  • MPH - Miles Per Hour

N
  • NOX - Nitrous Oxide

O
  • O2S11 - O2 Sensor Voltage Bank 1, Sensor 1
  • O2S21 - O2 Sensor Voltage Bank 2, Sensor 1
  • OBD II - Onboard Diagnostics, Second Generation
  • OEM - Original Equipment Manufacture
  • OL - Open Loop

P
  • PAIR - Pulsed Secondary Air Injection
  • PCM - Powertrain Control Module
  • PCV - Positive Crankcase Ventilation
  • PFI - Port Fuel Injection
  • PID - Parameter Identifier
  • PRN - Parameter Reference Number
  • PTC - Pending Trouble Code
  • PWM - Pulse Width Modulation

Q

R
  • RAFIG - Required Air Flow In Gear
  • RAFPN - Required Air Flow In Park/Neutral
  • RAM - Random Access Memory (read/write)
  • ROM - Read Only Memory
  • RPM - Revolutions Per Minute (Engine Speed)

S
  • SAE - Society of Automotive Engineers
  • SC - Supercharger
  • SFI - Sequential Fuel Injection
  • SLOT - Scaling, Limit(s), Offset and Transfer
  • SMS - Specifically Monitored Systems
  • SPARKADV - Spark Advance
  • SRS - Supplemental Restraint System
  • SRT - System Readiness Tests
  • STFT - Short Term Fuel Trim
  • STIT - Short Term Idle Trim

T
  • TAC - Thermostatic Air Cleaner
  • TAC - Throttle Actuator Control
  • TB - Throttle Body
  • TBI - Throttle Body Injection
  • TC - Turbocharger
  • TCM - Transmission Control Module
  • TID - Test ID
  • TP - Throttle Position
  • TPMS - Tire Pressure Monitor System
  • TPS - Throttle Position Sensor
  • TVV - Thermal Vaccum Valve

U
  • USB - Universal Serial Bus

V
  • VIN - Vehicle Identification Number
  • VPW - Variable Pulse Width
  • VR - Voltage Regulator
  • VSS - Vehicle Speed Sensor

W
  • WOT - Wide Open Throttle
  • WSS - Wheel Speed Sensor

X

Y

Z

If you guys see any errors or needed additions, please let me know. I will edit this list as necessary to make corrections or additions.
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Last edited by Rich Z; 02-25-2013 at 06:33 PM.
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