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6.7L Power Stroke Diesel 2011-current Ford Powerstroke 6.7 L turbo diesel engine

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Old Jun 20, 2021 | 08:02 PM
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sbeamer
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Question Forscan

Finally got my Forscan set up and working. Found a bunch of codes. Everything was working fine as far as I knew......
PCM codes are PO401, 471, 107, 401C and 471P
SCCM is B137F
HVAC is B11ES
What the ?

BUT!!! I noticed the turbo dial is "almost" all the way to 4. ???? It wasn't like that the last time I drove it. Started it a couple times, revved it a couple times. did not go down, unless I turn the key off. When I turn the key on, it goes right back up there! ????
 
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Old Jun 20, 2021 | 09:05 PM
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The instrument cluster boost gauge? I had to replace the MAP sensor to correct similar boost gauge behavior.

P0401 is generally a clogged EGR cooler core. I didn't always have a CEL for the P0401 until it got worse and became a constant issue. Lightly driving it, you wouldn't know but WOT or towing, you know right away due to the derate.

P0401 – Insufficient EGR Flow
P0471– Exhaust Pressure Sensor "A" Circuit Range/Performance
P0107 - Manifold Absolute Pressure/BARO Sensor Low Input


 
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