I have a 1991 protege dx, and I find that when I drive, often my car has a rough idle when I am in "drive" holding the brake, but if I shift into neutral, it goes down to a smooth, calm idle. Any particular reasons why this might happen? Any help is greatly appreciated.
BTW, I am fairly new to fixing a car, so I might need some more instructions that just "tweak this". thanks.
BTW, I am fairly new to fixing a car, so I might need some more instructions that just "tweak this". thanks.
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