1983 ELECTRONIC FUEL INJECTION EFI THROTTLE BODY INJECTED FOLLOW PROCEDURE OUTLINED BELOW TO DETERMINE CARBURETOR AND OR PART NUMBER 1 DETERMINE VEHICLE MODEL CHECK VIN DIVISIONAL CODE 2 DETERMINE ENGINE AND CARBURETOR TYPE 3 PART NUMBER CAN BE DETERMINED BY CROSS REEERENCING CORRESPONDING COLUMN NUMBER WITH SAME COLUMN NUMBER ON CHARTS VIN PRODUCTION DIV CODE USAGE COL N0 17082051 1 F 5 0S W FED FRONT INJECTOR UNIT SEE NOTE 1 17082050 1 F 5 0S W FED REAR INJECTOR UNIT SEE NOTE 2 17083054 1 F 5 0S W FED COMPLETE UNIT SEE NOTE 1 3 17083060 1 F 2 5 2 4 17082050 NOTE REAR MASTER UNIT FOR 2X1 PROD ASM 17083054 17082051 NOTE FRONT SLAVE UNIT FOR 2X1 PROD ASM 17083054 17083054 NOTE THROTTLE BODY INJ ASMS SERV SEP SEE 17082050 8 17082051 FOR DETAILS 1992 GENERAL MOTORS SERVICE PARTS 0PERAT ONS CHEVROLET 17F 3 125 3 76 1 92