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Doug
Doug, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 6924
Experience:  Mitsubishi employed and Factory trained ASE certified technician
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My 2003 ggalant runs rough at idle i changed the plugs aand

Customer Question

my 2003 ggalant runs rough at idle i changed the plugs aand ingition coils cleaned the mass flow do you think it could be the o2 sensor
Submitted: 1 year ago.
Category: Mitsubishi
Expert:  Doug replied 1 year ago.
Hi,
The O2 sensor is unlikely to cause rough idle. While possible, it just isn't typical.
How rough does it run, does it feel like there is a misfire or is it just low idle?