2009 ISX 15

[veemann]

So I found out this 2010 T2000 actually has a 2009 engine in it. It has something called "Smart Torque" WHICH I HATE! Maybe that might have something to do with the fact that I never know how much boost/power I will have available. I can be pulling a hill and occasionally I might actually see 35ish psi and if I have to downshift to keep it 1600-1700 rpm like say on a 6% grade, like north of Yreaka, well do the downshift and plant my foot back firmly down but now maybe it might come up to only 20 psi and another shift is needed because it won't pull in the gear I just shifted to. Not consistent from one hill to the next, or even one shift to the next. Or how about when I get up to around 2000 and I upshift but now I don't get that 35psi and it won't pull it in the gear I just upshifted to because now I only see 20-25psi. A couple of times below 20 and falling as if somebody cut the throttle off. Very frustrating! I did the carbon clean out stuff on the left side and I just checked the small tubing on the exhaust manifold pressure, changed the intake manifold pressure sensor........... No difference. AAAARRRRRGGGGGHHHH!!