Joined
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15 Posts
Been having some issues for a while now and thought I would check with the experts here for some answers
99 7.3 with high miles and a 6 speed manual. After driving and warmed up truck will lose power to the point that wont even hardly get up to 55 mph. Boost is definitely dropping off and runs very rough. Sometimes to the point of not idling. Usually happens worse when running at lower rpms. Like maybe loading up... many times if truck.is shut off it will restart and run fine, other times may have to sit several hours but once cooled off always runs fine. Have torque pro and have been monitoring ipr duty cycle and hpop and numbers look pretty normal. Tried today when acted unplugged icp...seemed to get better and then got worse like loading up. Hpop numbers were higher than when icp connected. My question is where do hpop readings come from with icp disconnected? I was under the impression icp was the feedback to computer for pressure reading. Do you think this is bad icp or ipr? Truck has 340k and both are original. Hpop readings hit 2800 with 35% duty cycle at a 2500 rpm...so I thought those were good. Or could bad icp be telling me hpop numbers that are incorrect? Done alot of reading on here and learned a lot but this one doesn't make sense to me...
99 7.3 with high miles and a 6 speed manual. After driving and warmed up truck will lose power to the point that wont even hardly get up to 55 mph. Boost is definitely dropping off and runs very rough. Sometimes to the point of not idling. Usually happens worse when running at lower rpms. Like maybe loading up... many times if truck.is shut off it will restart and run fine, other times may have to sit several hours but once cooled off always runs fine. Have torque pro and have been monitoring ipr duty cycle and hpop and numbers look pretty normal. Tried today when acted unplugged icp...seemed to get better and then got worse like loading up. Hpop numbers were higher than when icp connected. My question is where do hpop readings come from with icp disconnected? I was under the impression icp was the feedback to computer for pressure reading. Do you think this is bad icp or ipr? Truck has 340k and both are original. Hpop readings hit 2800 with 35% duty cycle at a 2500 rpm...so I thought those were good. Or could bad icp be telling me hpop numbers that are incorrect? Done alot of reading on here and learned a lot but this one doesn't make sense to me...