1998 Nissan Altima rotten-egg" smell

1998 NISSAN ALTIMA
135,999 MILES • 4 CYL • FWD • AUTOMATIC
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1998 Nissan Altima mileage: 135,999. The car emits "rotten-egg" smell from exhaust. Is it the catalytic converter or the oxygen sensor?
Nov 9, 2010 at 8:35 PM
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The "rotten-egg" smell is caused indirectly by the catalytic converter. The main cause is a rich mixture condition from the engine. Check the catalytic converter to make sure it is not "plugged" or restricted. Your car is equipped with a computer controlled engine management system. You can scan your computer for fault or error codes with a hand held scanner. The information will pinpoint the mal functioning components.
Nov 9, 2010 at 8:36 PM