Unfortunately, it can be other things as well. That is why you can't go by just the code.Just looked up the code, either you have a bad/misreading 02sensor, or a bad cat
That's why I would use my diagnostic scanner that shows an analog display of the in and out of the 2 O2 Sensors to make sure. Can get expensive throwing parts at a problem. For example, a dirty MAF can cause this exact problem and all you have to try is to clean it with $6 worth of MAF cleaner.But.... most likely......
yeah, you are probably right. Been awhile since I looked at those.But does a 99 yukon have a maf? Im ptetty sure the spider injection 350s dont but the stadard mpi ones do, not sure what year they switched.
told is a bad cat, $400 to replace??? yiii!!! I need an older pre smog truck!!
Ya, or get used to the light. Or take it out
it won't pass CA. smog with a bad cat![]()
told is a bad cat, $400 to replace??? yiii!!! I need an older pre smog truck!!
it won't pass CA. smog with a bad cat![]()
Did the person telling you this guarantee it to be the Cat?
Found 3 from 160 to 560 at summit racing which is CA compliant
http://www.summitracing.com/search/...l/50-state?SortBy=Default&SortOrder=Ascending