04 Sedona Engine Problems. Code P0302 - Page 2 - Kia Forum
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post #11 of 12 (permalink) Old 03-27-2009, 08:01 AM
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did you check your converters after you replaced the coil ?
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post #12 of 12 (permalink) Old 04-08-2009, 10:30 AM
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What you need to check is remove the intake plenum again, remove the lower portion, note the position of the valve control motor on the end of the plenum, mark its position with a couple dabs of paint (to reposition properly when reinstalling), remove the 3 5mm allen bolts from the motor, and turn the motor until the butterfly valves open completely. Next look at the shaft that all the butterfly plates are attatched to, make sure there are no screws missing from the plate for #2 cylinder, you'll also want to check at the shaft on each side of the valve plate, make sure there is a bushing on the shaft at both sides, if any of these are missing, chances are they fell off and down into #2 cylinder (which may result in piston/cylinder head damage) thus creating an air leak at #2 intake runner. If you do a compression test on #2 cylinder, and come up with a low reading, then I would suggest pulling the cylinder head and checking for further damage. Good luck, I hope this helps you out.
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