Question:

2004 ford focus running rough at idle but smooth while driving

by Guest5610  |  12 years, 9 month(s) ago

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 Tags: 2004, DRIVING, focus, ford, idle, rough, running, Smooth

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  1. amomipais82
    Hi,
    You might have a cat converter restricted, there will be o2 codes with a restricted converter. How much exhaust flow is there? you can drop the exhaust down so the exhaust flow does not go through converter and if it gets power back..
    Best of luck

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