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Message: [QUOTE="NitroJoe, post: 1569472, member: 39600"] Hello army! I need a few second opinions before I start down the next rabbit hole. Story behind truck: Bought from a negligent owner who performed no maintenance. Oil leaking everywhere. 350K on dial. No idea on what if any parts were changed. Here is what I did to correct the truck before we get to the point: [INDENT][LIST=1] [*]Rebuilt turbo (360 bearing, WW, new 1.0 ex housing) [*]Turbo pedestal with delete and resistor in plug. [*]New bellowed up pipes [*]New IPR, new ICP (ford or equivalent) [*]New LPOP [LIST=1] [*]Reservoir was slowly bleeding down overnight [*]Cleaned everything, cleaned check ball in block under housing [*]New gaskets for oil reservoir housing, HPOP, and fuel filter housing [/LIST] [*]CNC line kit as well for HPOP [*]6.0 intercooler, new boots, all cleaned [*]PCV reroute to filter and reinstalled back to intake [*]Oil Cooler rebuild (ford parts) [*]Coolant flush [*]Oil change 15w40 [*]Bypass oil cooler installed as well (Amsoil) [/LIST][/INDENT] Now what is happening.... No boost/Low boost - like nothing, at WOT I might see 5 lbs occasionally, but I have to really force it (like a race car). Takes over 1/2 mile to even get that much at WOT She idles well, no surging, no loping. Bit of a hard start, way better after I replaced LPOP, verified oil in reservoir Autel scanner while driving [TABLE] [TR] [TD]RPM[/TD] [TD]Barometric PSI[/TD] [TD]Exhaust Back Press PSI[/TD] [TD]Inj Contr Press 1 PSI[/TD] [TD]Inj Contr Press 2 PSI[/TD] [TD]IPR %[/TD] [/TR] [TR] [TD]680[/TD] [TD]14.95[/TD] [TD]16.15[/TD] [TD]474[/TD] [TD]481[/TD] [TD]23.8[/TD] [/TR] [TR] [TD]645[/TD] [TD]14.95[/TD] [TD]16.44[/TD] [TD]507[/TD] [TD]559[/TD] [TD]24.6[/TD] [/TR] [TR] [TD]1400[/TD] [TD]14.95[/TD] [TD]16.88[/TD] [TD]755.65[/TD] [TD]730.99[/TD] [TD]33.59[/TD] [/TR] [TR] [TD]1600[/TD] [TD]14.95[/TD] [TD]18.69[/TD] [TD]839.77[/TD] [TD]858.62[/TD] [TD]35.93[/TD] [/TR] [TR] [TD]1819[/TD] [TD]14.95[/TD] [TD]18.79[/TD] [TD]1109[/TD] [TD]1038[/TD] [TD]48.43[/TD] [/TR] [TR] [TD]2582[/TD] [TD]14.95[/TD] [TD]23.32[/TD] [TD]1430[/TD] [TD]1386[/TD] [TD]56.64[/TD] [/TR] [TR] [TD]3076[/TD] [TD]14.95[/TD] [TD]29.04[/TD] [TD]1649[/TD] [TD]1694[/TD] [TD]63.28[/TD] [/TR] [/TABLE] The truck DOES report a P1211, but nothing else. Here is additional troubleshooting I performed: [LIST] [*]Verified oil level in resoivior [*]Verified fuel pressure (riff raff gold spring) is showing 75PSI, on list to change to silver [LIST] [*]Test also performed under load and WOT, no change 75 PSI [*]Should also rule out tank issues (although I do have a frame mounted filter no debris) [/LIST] [*]Pressure tested charge side of turbo fixed any leaks, intercooler good. [/LIST] Based on the troubleshooting, chart, and research here is what I am thinking..... [LIST=1] [*]Map sensor is bad, value should be changing some [*]Possible bad oil? [*]P1211 Could be a ton of things but [LIST=1] [*]leaning towards weak HPOP [*]possible bad injector O rings, oil bleeding past? [/LIST] [/LIST] Let me know what you think. Thanks in advance, NitroJoe [/QUOTE]