Emission Control Abbreviations: "A"

A/C: Air Conditioning
A/C-ISUS: A/C Idle Speed-Up Solenoid
A/F: Air/Fuel
AAI: Air Assist Injector
ACL: Air Cleaner (Thermostatic Air Cleaner)
ACL-BMS: ACL Bimetallic Sensor
ACL-CKV: ACL Check Valve
ACL-DV: ACL Delay Valve
ACL-ESC: Electronic Spark Control
ACL-PVS: ACL Ported Vacuum Switch
ACL-RDV: ACL Reverse Delay Valve
ACL-RDVS: ACL Reverse Delay Valve (Single)
ACL-TCV: ACL Thermal Control Valve
ACL-TS: ACL Temperature Sensor
ACL-TSOV: ACL Temperature Sensor Override Valve
ACL-TVS: ACL Thermal Vacuum Switch
ACL-TVV: ACL Thermal Vacuum Valve
ACL-VCDV: ACL Vacuum Control Delay Valve
ACL-VCV: ACL Vacuum Control Valve
ACL-VM: ACL Vacuum Motor
ACL-WP: ACL Wax Pellet Type Motor
ADS: Anti-Dieseling Solenoid
AFR: Air/Fuel Ratio Sensor
AFS: Air/Fuel Ratio Sensor
AIH: Air Intake Heaters
AIH-TS: AIH Temperature Sensor
AIR: Air Injection System
AIS: Air Injection System
AIS-ACV: AIS Air Control Valve
AIS-AF: Air Injection System Air Filter
AIS-AMV: AIS Air Management Valve
AIS-ASV: AIS Air Switching Valve
AIS-BPV: AIS By-Pass Valve
AIS-CC: AIS Computer Controlled
AIS-CKV: AIS Check Valve
AIS-CSV: AIS Control Solenoid Valve
AIS-CV: AIS Combination Valve
AIS-DV: AIS Diverter Valve
AIS-IMCV: AIS Intake Manifold Change-Over Valve
AIS-MCV: AIS Manifold Change-Over Valve
AIS-OWV: AIS One Way Valve
AIS-PAF: AIS Pulse Air Feeder
AIS-PM: AIS Pump Motor
AIS-PV: AIS Pneumatic Valve
AIS-RV: AIS Relief Valve
AIS-SAV: AIS Secondary Air Valve
AIS-SOL: AIS Solenoid
AIS-SV: AIS Solenoid Valve
AIS-VCV: AIS Vacuum Control Valve
AIS-VSV: AIS Vacuum Switching Valve
AIS-VT: AIS Vacuum Tank
AIS-VCV: AIS Vacuum Control Valve
AIS-VSV: AIS Vacuum Switching Valve
AIV: Air Injection Valve
AIV-SOL: Air Injection Valve Solenoid
ALVW: Adjusted Loaded Vehicle Weight
AMV: Air Management Valve
AP: Air Pump Injection System
AP-ABV: Air Pump Air Bypass Valve
AP-ACV: AP Air Control Valve
AP-AMV: AP Air Management Valve
AP-ASRV: AP Air Switching Relief Valve
AP-ASS: AP Air Switching Solenoid
AP-ASV: AP Air Switching Valve
AP-BP: AP By-Pass Valve
AP-BPV: AP By-Pass Valve
AP-CKV: AP Check Valve
AP-CS: AP Control Solenoid
AP-CV: AIR Cut-Off Valve
AP-DCTO: AP Dual Coolant Temperature Override
AP-DLY: AP Delay Valve
AP-DV: AP Diverter Valve
AP-EADV: AP Electric Air Control Diverter Valve
AP-EAMR: AP Electric Air Management Relay
AP-EAMS: AP Electric Air Management Solenoid
AP-EAP: AP Electric Air Pump
AP-EC: AP Electromagnetic Clutch
AP-ERLY: AP Electric Air Pump Relay
AP/PAIR: Pulsed Secondary Air Injection
AP-RDV: AP Reed Valve
AP-RV: AP Relief Valve
AP-SOL: AP Solenoid
AP-SOV: AP Shut-Off Valve
AP-SV: AP Solenoid Valve
AP-SWV: AP Switchover Valve
AP-TV: AP Transmitting Valve
AP-VCS: AP Vacuum Control Solenoid
AP-VCSV: AP Vacuum Controlled Air Shut-Off Valve
AP-VCV: AP Vacuum Control Valve
AP-VSV: AP Vacuum Switching Valve
A/T: Automatic Transmission
ATCV: Air Temperature Control Valve