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Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff
  1. Rambo 7007

    Code 2201

    2013 Ram 2500 58000 miles. code 2201. Replaced upstream nox sensor with aftermarket part (Dorman). Code came back. Trying to monitor live data to see what is causing this. What is normal range for nox sensor1 readings? I'm getting a brief spike to over 2000 ppm when I close the throttle before...
  2. Rambo 7007

    Code 2201

    2013 Ram 2500, 58,000 miles. Throwing code 2201 upstream nox sensor circuit. Could not see any problem with connections. Replaced sensor with aftermarket part (Dorman). Code came back. Freeze frame not much help. Live data shows nox level running 200-300 ppm during normal driving until...
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