4th Gen Ram Tech 2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Engine Light on !!!??

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Jul 23, 2012 | 06:54 AM

#11

BULLRAM

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Joined: Aug 2007

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From: HOUSTON,TEXAS

On the 09 , the PCM would get hot and start putting out all the o2 sensor codes, I knew it couldnt be the sensors since it started with one then it showed all were bad, turns out the PCMs ,..some of them were bad