pulled codes.... need help August 02, 2007, 09:03:59 PM 71?81- thermacator air byass circuit fault42 system rich77- didnt do 'goose' test21-ECT out of range34- no EGR flow74 -brake on/off switch not activated or always opennow... how do i fix these? and are any of them related? Quote Selected
pulled codes.... need help Reply #1 – August 03, 2007, 02:04:47 AM Ignore 77 & 74... Operator error...Fix the 21 first, if the engine wasn't warm that will throw a temp sensor code... Quote Selected
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