Abbreviations and Symbols (page 3 of 3)

SPE Single Point Entry sp.gr Specific gravity SRS Supplementary Restraint System std. Standard synchro Synchronizer or synchromesh TA Traffic Announcement TDC Top Dead Centre TMAP Temperature, Manifold Absolute Pressure TMC Traffic Management Channel TP Throttle Position TPS Throttle Position Sensor TV Torsional Vibration TWC Three-way Catalyst TXV Thermostatic Expansion Valve UK United Kingdom US United States US galls/h US gallons per hour V Volt Var. Variable VDOP Velocity Dilation Of Precision VICS Vehicle Information Communications System VIN Vehicle Identification Number VIS Variable Intake System VRS Variable Reluctance Sensor VSS Vehicle Speed Signal W Watt WOT Wide Open Throttle