1991 ELECTRONIC FUEL INJECTION EFI THROTTLE BODY INJECTION 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 REFERENCING CORRESPONDING COLUMN NUMBER WITH SAME COLUMN NUMBER ON CHARTS VIN PRODUCTION DIV CODE USAGE COL NO 17088083 234 N 2 5U 1 GROUP DESCRIPTION OTY 1 2 3 4 5 3 725 THROTTLE BODY INJECTION PRODUCTION 1 17088083 3 724 GASKET KIT 1 17076157 3 725 THROTTLE BODY INJECTION SERVICE 1 17112176 3 729 BODY KIT THROTTLE 1 17112170 3 734 COVER KIT FOUR VACUUM PORT 1 17112086 3 724 FASTENER ASSORT KIT 1 17111819 3 774 FUEL INJECTOR KIT 1 17112123 3 734 FUEL METER BODY KIT 1 17112082 3 724 NUT KIT FUEL INLET OUTLET 1 17111818 T 3 764 SENSOR KIT THROTTLE POSITION 1 17111822 3 820 VALVE KIT IDLE AIR CONTROL 1 17111826 ADDITIONAL ATTACHING PARTS DIV GROUP MODEL USAGE NOUN NAME DESCRIPTION OTY PART 234 3 726 N 2 5U GASKET T B I 01 10066687 1991 GENERAL MOTORS SERVICE PARTS OPERAT ONS BU CK 44N 3 725 344 2 91