Engine Performance problem
1990 Cadillac Deville V8 Front Wheel Drive Automatic 156000 miles
my 1990 cadi sedan deville wont pass smog! Its running 1 & 1/2 times richer than the max allowed. Ive replaced the cad converter & all sensors that can possibly make it run too rich. The diognostic test shows everything is fine, "but" the smog test has it running way too rich! It allows for a max at 100 but its testing at 245 ! Ever heard of this? Please help.
have the same problem?
Monday, March 31st, 2008 AT 2:06 PM