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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I have had my check engine on for a couple days now. I just got ahold of OBDII code reader and the code I got was P1491. Can anyone tell me what this code means. I cleared it and when I turned my truck off and back on, the light came back on.