"T"
TAB - Thermactor Air By-Pass
TAD - Thermactor Air Diverter
TACH - Tachometer
TB - Throttle Body
TBI - Throttle Body Injection
TC - Turbocharged
TCC - Torque Converter Clutch
TCM - Transmission or Transaxle Control Module
TCS - Traction control solenoid (SAAB 9000)
TD - Turbo Diesel
TDC - Top Dead Center
TDI - Turbo Direct Injection (A turbo charged direct injected diesel engine)
Temp. - Temperature
TFI - Thick Film Ignition
THERMAC - Thermostatic Air Cleaner
TIV - Thermactor Idle Vacuum Valve
TKS - Throttle Kicker Solenoid
TPI - Tuned Port Injection
TPP - Throttle Position Potentiometer
TPS - Throttle Position Sensor/Switch
TPT - Throttle Position Transducer
TS - Temperature Sensor
TSP - Throttle Solenoid Positioner
TV - Throttle Valve
TV - Thermovalve
TVS - Thermal Vacuum Switch
TWC - Three Way Catalyst
TWC+OC - Three Way + Oxidation Catalytic Converter
