I think I have a bad cat but I'm not sure how I can tell. The check engine light came on and the trouble code says the problem is "Catalyst system efficiency below threshold". Is that a problem with my cat? Are there any physical indications that point to a faulty cat? There's over a 100K on the car and I have bad valve seals, so Ive been blowwing excessive oil throught the cat. Will that eventually cause problem in the cat? Help.

 

Excessive burned/unburned oil entering the catalyst will cause it to fail. It sounds like your cat is shot to me. Get the oil burning problem fixed and then replace the cat.

 

Sounds like a plan. Thanx.

 

Who calls it a bad kitty?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -Todd- &raquo;</TD></TR><TR><TD CLASS="quote">Who calls it a bad kitty? </TD></TR></TABLE>
I thought it was pretty funny