Question about 2001 Kia Rio

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2001 kia rio engine looses power

After driving some distance the engine begins to run rough and loose power. If it is accelerating it seems to have power but won't maintain a constant speed. If the battery is disconected briefly then it runs fine for a short time. The engine light comes on and after scanning it reads as multiple misfire. Plugs, wires, O2 sensors,computer, fuel delivery system, alternator, starter,throttle body, mas air flow, air filter, battery all changed. The enginge was also remanufactuered post total failure.
Whats next to check or change ?

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  • lolo721 Dec 30, 2008

    the car is a standard, and idles rough in and out of gear while stopped slightly better with the clutch in.

  • kevin carpenter May 11, 2010

    install a vacuumn gauge on the mtr intake vacuumn, how many miles on the mtr thanks kdc744

  • kevin carpenter May 11, 2010

    how dose it ilde in park and drive ? kdc744

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Try your crank shaft sensor, sounds like the same problem i had , had crank shaft sensor replaced and it drove fine afterwards. maybe go to auto zone or something and see if that code comes up

Posted on Apr 18, 2010

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Do you have coil or distributor you might check those and also do a compression test on your vehicle by then you will justify which causing it...

Posted on Dec 31, 2008

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