It'll be the boost controller solenoid
With this malfunctioning, the engine will not boost as the default is no power rather than overboosting the engine
Thanks your quick reply but im thinking the turbo shown is vaccum operated and the turbo on my car has the electronic actuator im now thinking that my turbo is going to have to be changed?:mad
That's what comes up on a 2004.
A turbo will never be electronic as the temperatures are too high.
Instead, they use vacuum to provide the power, controlled by a solenoid that will allow or deny the vacuum to operate the actuator.
When the solenoid recieves power from the ecu, vacuum is passed through to the wastegate, and this pulls the door shut giving boost.
At the moment, there is no boost as the wastegate is staying open, and the ECU is reporting the solenoid is looking like it's shorted / open
Ive had all turbo pipes off and inspected for leakes and not found any and all the vaccum pipes seem fine,ill just have to bite the bullit and take it to a garage.
Is there any way i can check the system out for air leaks manually?
Yes ive found it and its comig up the same as you got in the link,the thing is with my turbo ive got an atuator arm and when you turn ignition on it will open and if you turn off the ignition it moves back.
The only thing its doing now is trying to open but with no sucsess.
There is no vaccum resevoir near the turbo so im a bit confused?
I do know they changed the turbo somewhere around the 2003/2004 mark but i dont now when
You will have a electronically controlled turbo actuator on your car I'm afraid. :thumbsup Hence why there are no vacuum pipes, the later E46 diesels had a electronically controlled actuator as shown on Realoem by this wording here............Observe DDE control module programming!
There crafty with these as well. I have had the same issue with a customers car, had to buy a turbo from bmw as the actuator is electronic and not sold seperatley..:frown
electronic actuators cannot be replaced on the turbo variable vane electronic control type its new or nothing but its rarely the electronic actuator failed and more the variable vanes sticking due to carbonised deposits on the vanes being the source of the poor boost problems and performance..
Can the variable vanes be cleaned,or will i need a new turbo?
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