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  1. W

    2021 Fuel Pressure Fluctuations and Roughish idle

    You’re welcome? That is exactly what they said to run. He said their 21 test truck only has like 400 miles on it and they don’t spend a lot of time on it specifically as there are more 19’s and 20’s needing tunes and revisions. Sent from my iPhone using Tapatalk
  2. W

    2021 Fuel Pressure Fluctuations and Roughish idle

    I called CCS and got a new 21 friendlier tune that seems to be working better. It’s not dropping rail pressure on accel or decel and the stumble at idle is gone. There is still a bump in the truck when at a stop and in drive, but that could be trans unlocking and still learning. I will update...
  3. W

    2021 Fuel Pressure Fluctuations and Roughish idle

    I forgot to add. Ac was off. 75 degrees and the winders are down. Sent from my iPhone using Tapatalk
  4. W

    2021 Fuel Pressure Fluctuations and Roughish idle

    Hey all, This might be my first post on here and it’s gonna be a long one. Anywho, I am working thru an issue with fuel pressure fluctuations at idle and under load. The truck is a 21 6.7 SO with the 68RFE, Ez Lynk with CCS tuning, Black Market Performance Cat filters front and rear, and a...
  5. W

    New from OKC

    Hey everyone. I have been lurking around the forum for a few months now. I just recently purchased a new 2021 Ram 2500 Tradesman CTD, first diesel of my own, won’t be my first diesel to maintain. Sent from my iPhone using Tapatalk
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