Been running around and lost all boost reconnected the waste gate actuator, but still can get any more than 0.3 bar of boost all the small hoses are ok
Any Ideas?
Been running around and lost all boost reconnected the waste gate actuator, but still can get any more than 0.3 bar of boost all the small hoses are ok
Any Ideas?
Lead follow or get the flock out of the way
Where did it come disconnected? On mine it looks like a straight bar straight from the actuator to the lever. Did it just drop out of the actuator?
Perhaps the actuator is stuck or broken...
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
the clip that held the arm to the gate had fallen off
Lead follow or get the flock out of the way
If everything was working fine before the actuator arm became disconnected I would say that the arm disconnection was a symptom rather than the problem. You may have an underlying problem with the wastegate actuator.
Steve
1994 Alfa Romeo 155 Q4: Dozeing in the garage.
2009 Audi A4 tdi: Everyday drive.1994 Alfa Romeo 155 , 1995cc Std Standard Black
Did you reconnect the actuator arm in the correct way?
Looks like you'can't build boost because the wastegate is open permenantly....or like Steve said, a problem with the actuator itself.
Greetings,
Marc
In a world full of compromise...
...some don't.
___________________________
Opel Astra Sports Tourer 110HP 2017
Alfa 147 1.6 16V 120HP
Alfa 155 Q4 2.0 16V turbo
its not the waste gate, I've had the turbo off and the actuator is definitely holding the wastegate shut
reading through it seems that its only running on base boost
Lead follow or get the flock out of the way
Maybe try disconnecting the pierburg valve and gently test the waters with the boost and see if you get more - remember the fuel defence is at 1.5 bar - not nice to hit that!
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
Ok
I've connected the 2 pipes together and still only 0.3 bar boost
rechecked all the small bore pipework
checked the pierburg has 12v
losing the plot now anyone any ideas I don't think its the turbo as I has it off the car with the wastegate problem and all was good no smoking and no bearing play
Lead follow or get the flock out of the way
I am not sure, but I think connecting them together will cause any pressure from the turbo to push open the waste gate with no management.
To test the turbo I would disconnect the hose from the waste gate and leave it disconnected. That way, all the exhaust will pressure will build the boost.
Page 42: http://berlinasportivo.com/Technical...ual/Q4fuel.pdf
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
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