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Me_Again's avatar
Me_Again
Explorer III
Aug 03, 2020

2019+ RAM HD with failed CP4-2 IP to get CP3's

RAM mechanic just posted on another forum that RAM just release a new plan to replace all failed CP4-2 IP with the more reliable CP3 IP.

Hopefully they with recall all the others for a replacement before the more costly failure replacement that cost 10-12K.
  • There are aftermarket conversion kits to go from CP4 to CP3. Everything I read was that the CP3 could not provide enough fuel rail pressure for the current engine outputs without creating more emissions. Perhaps atomization is insufficient but volume can keep up?
  • Flan wrote:
    Sounds like Fake News to me. That being said there have been people who have put on a CP3 and have had no driveability issues, or codes set for that matter.


    On the 2019-20 Ram 6.7 ???
  • Scuttlebutt is that its legit.

    If so, that's extremely cool. Then one could get a CP3 reflash and stay stock.
  • Sounds like Fake News to me. That being said there have been people who have put on a CP3 and have had no driveability issues, or codes set for that matter.
  • I am skeptical. I thought the CP3 couldn’t deliver enough pressure so they went to the 4 ???
  • I don't think the EPA or about 10 other government agencies are going to go for that.

    You can't even change one line of software unless you get approval from a bunch of agencies.
  • No way! Seriously?
    I mean that’s a great fix and kudos to Ram if it’s true.
    It’s not April 1 so.....
    Be cheaper for them to add disaster prevention kits to all the trucks then if they do fail it only cost 10-20% as much to repair.