1990 DIGITAL ELECTRONIC FUEL INJECTION DEFI 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 REFERENCING CORRESPONDING COLUMN NUMBER WITH SAME COLUMN NUMBER ON CHARTS VIN PRODUCTION DIV CODE USAGE COL NO 17089021 6 D 5 7 7 1 GROUP DESCRIPTION QTY 1 2 3 4 5 3 725 THROTTLE BODY INJECTION PRODUCTION 1 17089021 3 724 GASKET KIT 1 17111764 3 725 THROTTLE BODY INJECTION SERVICE 1 17112074 3 729 BODY KIT THROTTLE 1 17112067 3 820 CONTROL KIT IOLE AIR VALVE 1 17111460 3 724 FASTENER ASSORT KIT 1 17111539 3 774 FILTER GASKET KIT FUEL METER 1 17079671 3 774 FUEL INJECTOR KIT 1 17111771 3 774 FUEL INJECTOR KIT REMAN 1 17111866 3 724 FUEL INLET OUTLET KIT NUT WASHER 1 17111462 3 734 FUEL METER BODY KIT 1 17078262 3 734 FUEL METER KIT INJECTORS PRESSURE REG INCL 1 17111775 3 734 FUEL PRESS REG COVER KIT 1 17111875 3 440 SENSOR KIT THROTTLE POSITION 1 17111787 ADDITIONAL ATTACHING PARTS DIV GROUP MODEL USAGE NOUN NAME DESCRIPTION OTY PART 6 3 726 D 307Y GASKET CARB 01 22508038 6 3 726 D 5 0 9 W B05 GASKET CARB 01 22508038 6 3 726 D 5 0E GASKET T B I 01 10129563 6 3 750 0 5 0 9 W B05 PIPE CHOKE CLEAN AIR 01 419302 1992 GENERAL MOTORS SERVICE PARTS 0PERATlON CAD LLAC 62D 3 725 3 sa 1 1 92