Mechanics

INFINITI Q45 ALL WHEEL DRIVE PROBLEM

1999 Infiniti Q45

Engine Performance problem
1999 Infiniti Q45 V8 All Wheel Drive Automatic 130000 miles

my car have a rough idal and smells like eggs I chang master flow sensor and put new plugs in can you tell me whats wrong. And how to fix it
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Beman24
June 8, 2010.



Hi beman24, Welcome to carpros and TY for the donation

Could be caused by high amounts of sulfur in the gasoline being used in the vehicle, a partially clogged catalytic converter causing it to idle rough and could also be coming from the battery

Rasmataz
Jun 9, 2010.