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Hello there's everyone, hope y'all are doing well I've been fighting an ongoing issue that renders my truck useless, it will not rev past 2300 rpm no matter what you do, once you get past 2000 it pops and misses terribly here's the codes are 1698 ive had forever with zero issues and the p0230 is from my air dog. my grid heater is deleted so I believe that's the other two but the p0251 makes me wonder. It's not the VP as I thought because I got it warrantied with no better results any help would Be great thank you 

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Have you done any diagnostics?    Have you tried running with out the Quadzilla to see if that's giving ant interference.

 

 

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I have eliminated the quadzilla I've also tried multiple tunes but they make I worse, I've went through that whole diagnostic page and cant seem to find anything out of spec but when I go to freeze frame it shows nothing. I messed with the map sensor harness and replaced it and now it will rev higher while driving but still pops and won't go past 2300 while free reving? 

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