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Message: [QUOTE="kampy, post: 206471, member: 989"] Looks like a bunch of things going on possibly compounding on themselves. It really looks like a HPO issue to begin with, but a 5.5ms pw will cause significant HPO loss if you have a leak like orings or a poppet not sealing tight. The boost and EBP pressure readings look whacked out also in the 140 tune. Given that the baseline for the sensors is ~ 15.0, look at the lines for rpm between 2821 and 2913. The boost never gets over about 11 psi but the back pressure is up around 37psi, Could the PCM/tuning be freaking out because of those readings? They're much more normal looking in the smaller tune. Does it run normal if you pull the chip? [/QUOTE]

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