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I have a 2016 337 with a PX-9 eng. Truck keeps throwing eng. code 3382 . I have replaced the Dif. prs. sensor , Removed EGR valve cleaned and inspected.,removed Exh. pressure tube and cleaned.Insite indicates EGR Cooler 100% efficiency . Ran the DPF regen. Analyzer test indicates "Exh. Gas Pressure Above Max." During Regen the Barometric psi 30 and gas pressure sensor 135. Is the EGR pressure sensor bad ? Ran a second test and came back "All Parameters within Spec" I have had this truck…

Peterbuild 337 Exh gas pressure above Max. ?

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