Re: "Ok, (peering around the cabin) who was it?"

[quinn@hns.com]

CLIFFORD ILKAY <clifford_ilkay@dinamis.com> wrote:

>A bad catalytic converter can cause that smell. You probably would not be
>able to pass an emissions test before replacing it. A bad cat converter
>saps power and burns more gas.

Maybe I'm missing something, but how can a 'bad' cat sap
power and/or burn more gas?  (Unless of course, it's SO
bad that the exhaust back pressure is changed.)  All engine
controls & electronics are upstream of the cat, right?

-Mark Quinn