mooneyes 89
07-22-06, 01:41 AM
my 1989 gmc s-15 is sick!was running great sunday,but monday it died pulling into my driveway.it has not run right since.symptoms are-hard to start,will not idle-if i feather the throttle it will barely run-if i run it a while like that it will eventually idle low or high,but will not accept throttle-tries to backfire!i have read codes-keep getting 24,33,and 34.i have replaced the map sensor,vacuum lines,egr,and seafoamed it!it eventually will run great at idle or high rpms,but when applying throttle,it farts and backfires!anybody had any similar experiences?it has 152k miles,and i am the second owner-was running perfect until last monday!thanks,scott