AbbreviationDescriptionA/CLLocated in the air cleanerA/CL DVAir Cleaner Diverter ValveA/CL BI METAir Cleaner Bi-Metallic ValveA/CL CWMAir Cleaner Cold Weather ModulatorACTAir fee Temperature Sensor, prior to 1992ACTSAir Cleaner Temperature SensorACVAir manage ValveAIRThermactor, quick for thermal Reactor. CA vehicles are mounted with it together standard. Waiting Injection Reaction is what that stands for.AIR BPVAIR Bypass (AIRB) Valve; also called the TAB (Thermactor wait Bypass) ValveBVBowl Vent (on top of the float tanks)CARBCarburetorCBDClosed bowl DistributorCPRVCanister Purge ValveDISTDistributorDPFEDifferential push FeedbackDV-TWTwo Way delay ValveEFCAElectronic Fuel regulate Assembly / (Fuel push Regulator (FPR)EGRExhaust Gas RecirculationEGRC/EGRVEGR Vent/EGR ControlEXH HCVExhaust Heat regulate ValveEVPEGR Valve PositionEGRValve PositionEVREGR Vacuum Regulator; additionally called EGR Vacuum SolenoidFLTRFilterFPRFuel pressure Regulator (check vacuum line)HEAT VLV INTHeat Vacuum regulate Valve Intake, (next come carb)HICVHot Idle control ValveIATIntake wait Temperature Sensor (Air fee Temperature (ACT), before 1992IVVThermactor Idle Vacuum ValveLCVEGR fill ControlMAN VACManifold vacuum-Vacuum source; typically ref. To together Vacuum Tree atop entry manifoldMAPManifold pure PressurePCVPositive Crankcase VentilationPURGEVapor Canister Purge ValvePVPorted VacuumPVSPorted Vacuum move (PVS) ValveSSpark portSA-FVSeparator Assembly Fuel/VacuumSOLVThermactor Solenoid ValveSV CBVCarborator Fuel bowl Solenoid Vent ValveTCACThermostatically managed Air CleanerTCPTemperature Compensated Accelerator PumpTKThrottle KickerTVSThrottle Valve Solenoid (aka Solepot, Dashpot) OR Temperature Vacuum SwitchTVVThermal Vacuum Valve OR Thermostatic Vacuum Valve (aka porting Vacuum Switches; thermal Vacuum Valve)VACVacuumVCKVVacuum inspect ValveVCVVacuum regulate ValveVDVVacuum hold-up ValveV CK V or VCVVacuum inspect ValveVOTMVacuum Operated throttle ModulatorVRDVDistributor Vacuum delay Valve (VDV, VRDV, DV-TW)VRDVVacuum hold-up Valve (VDV, VRDV, DV-TW)VRESERVacuum Reservoir (coffee can style in previously years; replaced by plastic style)VRESV RESTon earlier years such together SEABRONC’s 83 is a Vacuum Restictor/delay valve, the delays vacuum because that a certain amount the timeVRVVacuum Regulator ValveWOTWide open Throttle Valve