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Three codes & no turbo
Anyone want to take a guess at what's going on here? Three trouble codes popped up on an '02 E350 7.3 -
P1211 IPR ICP pressure above/below desired - IPR valve failed, stuck, or shorted to ground
P1248 MAP Turbo boost pressure not detected - MAP hose, sensor, EBP sys, intake leaks, turbo
P0605 PCED Internal control module ROM error - Internal PCM failure
Specifically, truck was in use for the last 2 weeks, about 1000 mi of light use. CEL came on about 150 miles ago as the truck went over a pass at 11,000' or so, been on since. Pulled codes, cleared, CEL returned.
Truck runs fine under normal light loads but there's no turbo pulling at all and no noise to indicate uppipe leak. EBP sensor? Wouldn't that get it's own code tho?
350k total miles, replaced injectors & turbo with OEM about 6k ago. No rough idle or startup issues, just no turbo & CEL remains solidly lit.
There's a Bullydog 6-position chip on there in a modest setting. Deactivating that doesn't change anything.