I have a 98 olds aurora & ran a diagnostics on it and the codes that came up are P1645
& P0440 both are emissions issues what do I need to do to fix the problem from home
yes I have very little auto repair experiance. PLEASE HELP! at XXXXX@XXXXXX.XXX
Optional Information:
1998 Oldsmobile aurora V8
Already Tried:
CHANGED SPARK PLUGS