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why does my car run like crap?
i have a 1989 Dodge Datona, 2.5l, 4 cyl, EFI.(no turbo) it runs real rich what is a easy way to determine whether its the fuel pump, pressure regulator on top of throttle body or some computer related glich
The oxygen sensor controls the fuel mixture. replace it. Also replace the spark plugs because running rich kills them pretty quickly. I reccommend bosch 4 spark spark plugs. I put some in my ranger and it went from 19mpg to 25. thats as good as a volkswagon jetta.
Im positive of that because my gas gauge was broken, so I calculated the mileage every time I filled up.
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