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duramax cp3 pump swap

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Uploaded by on May 27, 2011

was loosing like %50 power and low rail pressure even with a lift pump.....thought it was injectors but turned out it was a week cp3 pump..change it out and got way more power and poured way more smoke!

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Uploader Comments (marinejoe235)

  • Glad you posted this I'm about to be doing the samething hopefully it will fix my problem of getting this p0093 code and throwing me in limp mode! And I also hope to improve my power I made 500+rwhp and 950+ft lbs like this so I'm hoping for better power! Nice videos keep it up! MAX IT UP

  • limp home mode comes from to much power....if you have efi live crank it down some....or what ever chip or tuner you have crank it down and know its limit and limp home wont accur

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  • Was you having problems with going over 2000 rpm as well?

  • im pretty sure i have the same problem.. i picked up an edge cts and thats showing that my desired fuel rail pressure is at like 23,000 psi.. but my actual is like 4,000 psi at wot.

  • GM pays 15 hours for techs to replace the cp3.

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