would a leaking exhaust manifold gasket cause a catalytic to burn out. on 1992 Honda Accord

On a 92 honda accord engine if I had a leaking exhaust manifold gasket leaking would it cause a catalytic converter to enventually burn out.Also would this condition of leaking exhaust gas trick the only 02 sensor on this cars dx model to make the engine run rich and consume more fuel.

by in Oak Park, IL on July 06, 2012
1 answer
ANSWER by on July 07, 2012
The O2 sensor has nothing to do with the rich or lean mixture of your car. O2s only registers hydrocarbons going thru the exhaust system. If it was on the intake side i'd say you could have a problem. But on the exhaust side, it would mean less amounts of hydrocarbons going thru your converter to cause that kind of problem. Goodluck