1992 Geo Metro , l - SYSTEM/COMPONENT TESTS 1992 ENGINE PERFORMANCE Geo System & Component Testing . C" Wide Open ' I Switch < "B" Idle Switch I IIAII/ Throttle Switch 90H18009 . 3: Throttle Switch Terminal ID ( Metro MIT) 1rtesy of GENERAL MOTORS CORP. 9 Star Automotive Repair 3 day, June 08, 2007 11:16:57 AM r Page 2 2005 Mitchell Repair Information Company; LLC.