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misfire codes po300 301 303 and 305

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Old Dec 14, 2014 | 08:21 PM
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martin12's Avatar
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Mudding
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Default misfire codes po300 301 303 and 305

New to the form. A few weeks ago had several codes up some was bout the exhaust and 02 sensors and then the misfires. At a stopped point for any length of time after the truck warmed up, it would seem to stall out or fight to stay cranked. Ordered new Bosch +4 plugs and magnecor 8mm wires. Problem solved until yesterday. Same misfires any ideas or advice to the problem at hand any advice is appreciated. Also the truck is automatic with roughly 150k miles bought it around 143k had a few problems and needs some work.
 
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