1988 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 NO 17087280 1234 A 2 5R W A T 1 GROUP DESCRIPTION GTY 1 2 3 4 5 3 725 THROTTLE BODY INJECTION PRODUCTION 1 17087280 3 724 GASKET KIT 1 17076153 3 725 THROTTLE BODY INJECTION SERVICE 1 17111907 3 729 BODY KIT THROTTLE 1 17111911 3 734 COVER KIT FOUR VACUUM PORT 1 17111915 3 724 FASTENER ASSORT KIT 1 17111819 3 774 FUEL INJECTOR KIT 1 17111986 3 734 FUEL METER BODY KIT 1 17111989 3 724 NUT KIT FUEL INLET OUTLET 1 17111818 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 1234 3 726 A 2 5R GASKET T B I O1 10066605 1 1991 GENERAL MOTORS SERVICE PARTS OPERAT ONS CHEVROLET 7A 3 725 3 66 5 91