Vauxhall Vivaro flat spot black smoke no power

Check the turbo control system,
small diameter black pipe runs from the vac pump to the pressure sensor mounted on the battery box side plate.
check it's not burst/perished.
pressure sensors can fail.
same pipe then loops through the turbo actuator solenoid then down to the turbo.
Boost pressure is nill unless this system is working so no turbo.

hi thanks for telling me what to look for checked all pipes ok cont here turbo cutting in pulled the plug out of the solenoid the 1 with I pipe on it and it runs 90% better so would you think it could be that I thanks

had new mass sensor boost sensor egr value still got dead spot any ideas

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