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  1. Jimcummings

    PCM Error code p1400-00 on a brand new 2020 2500

    The check engine light came on on my 2021 Ram 2500 diesel with 17,000 miles. So I take it to the dealership thinking it's a sensor or something since it has no mechanical problems. Then after they keep it for a day and a half I get a phone call saying it has a p1400 code and tell me that an...
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