Car runs bad, codes p0446, p1159,p0300, p0305, p0303, p0301

2002 KIA SEDONA
185,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
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ELDRIDGE RAMSEY
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Rough idle, like power on acceleration, misfires, code reads; p0446, p1159, p0300, p0305, p0303, p0301. Replaced spark plugs. What can I do my self to repair?
Jul 28, 2018 at 7:53 AM
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STRAILER
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Hello,

This sounds like you have an internal engine problem which can be found by doing a compression test. Here is a guide to help get us started:

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run down this guide and report back.

Cheers, Ken
Jul 29, 2018 at 11:32 AM