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2007 e320 Intermittent boost. Help with codes.

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Old Oct 3, 2023 | 08:45 PM
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2007 E320 W211 Bluetec
2007 e320 Intermittent boost. Help with codes.

my 2007 OM642 has internment boost problems. Sometimes it will work. And when it works it stays working for a few days.
I have done turbo actuator control tests and it moves properly. "I also replaced it"

Star is showing
Charge pressure positioner. >= 85.0. reading 5.0
On/Off ratio of component Y94 (Quantity control valve) (24.0..31.0) is always high. 42%

The system is throwing codes:
Rail pressure monitoring via volume control valve Rail Pressure deviation due to air forming in the system.

Hoping someone can give me some guidance. I previously had an injector problem that was caused by water which I resolved.



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