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Jeep Wrangler JK
JK General Discussion
Code P0300 after replacing almost everything
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<blockquote data-quote="Danarch" data-source="post: 449757" data-attributes="member: 21093"><p>This stinks, sorry about all that. I am not sure if this will help but did you try a reset on the ECU/PCM? I am not sure if that is required or helps when all the above work has been done, but I can’t imagine it would hurt anything.</p><p></p><p>You’ve done a lot above so hate to ask, but did you check the battery, battery post/terminals to make sure they are clean? I would also check the grounds and make sure they are clean, at least the primary ground.</p></blockquote><p></p>
[QUOTE="Danarch, post: 449757, member: 21093"] This stinks, sorry about all that. I am not sure if this will help but did you try a reset on the ECU/PCM? I am not sure if that is required or helps when all the above work has been done, but I can’t imagine it would hurt anything. You’ve done a lot above so hate to ask, but did you check the battery, battery post/terminals to make sure they are clean? I would also check the grounds and make sure they are clean, at least the primary ground. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Code P0300 after replacing almost everything
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