For what its worth, my son has a NON-hybrid car that was setting the check engine lite within moments of resetting it indicating the catalytic converter output was out of spec. The dealer said it needs replacement at some huge sum of money. The car has 70k miles on it.

I decided to do a tune up, replaced the plugs, plug wires, oil and air filters and of course the oil.

I reset the check engine lite one month ago and no more lite. Oh, by the way, also replaced the battery too on the same day which reminds me... My friend who also has a non-hybrid was throwing all sorts of error codes. His dealer tried everything and nothing resolved the problems TILL they replaced his battery. The battery was tested as was mine and his was tested as bad. I tested mine with a hydrometer and had two cells which were dead as can be.

So, the reason I post this is because the PROBLEM doesnt HAVE to be the cat to lite the cat lite.


Best of luck finding and resolving your problems

Tony