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Old 04-12-2013, 10:05 AM
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blue goats blue goats is offline
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Default 2003 odyssey misfiring/check engine light on

Its codes that it set P1399, P0300,P0301,P0302,P0303,P0304. Random misfire. Any help would be appreciated. I don't want to just start changing parts.
Thanks,
George

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Old 04-12-2013, 10:59 AM
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Derding Derding is offline
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Be darn sure your battery is good. I had a random misfire with multiple codes on a Kia mini van. Turned out it was a weak battery.

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Old 04-12-2013, 10:03 PM
salem1912 salem1912 is online now
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George might read though this site. Apparently P1399 could be anything. pg2-3 have some info. http://honda-tech.com/showthread.php?t=1962862

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Old 04-12-2013, 10:31 PM
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The Honda Odyssey Forum is pretty good.
www.odyclub.com/
Might be as simple as a bad plug or ignition coil. Usually the 3.5 is pretty reliable.

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Old 04-14-2013, 09:18 PM
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Tested coil packs and changed spark plugs while testing. The number 5 coil pack was bad and was replaced Saturday.
Thanks all,
George

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