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  1. Generation 1 Chevy Volt (2011-2015)
    Hi all, I have had the engine light come on a couple times intermittently. I'd like to read the code and roughly know what is wrong. I currently have an ELM 327 OBDII reader that transmits via wi-fi to my iPhone where I have the Piston app. I want to make sure I plug the reader in in the...
  2. Generation 1 Chevy Volt (2011-2015)
    We have all seen many posts on this forum about obd2 readers, leaving them connected to the OBD2 port and gaining all kinds of information from the Volt. What I cannot find is this : Is there an OBD2 reader or scanner I can purchase that will give me the same info that OnStar can give me when...
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