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Re: laguna II 1.dci - what to do next?
Frustratingly, it turned out to be a split at the joint of a vacuum pipe from the wastegate solenoid that id missed! £250 spent for a pipe!
I posted on this type of fault ages ago.. If you follow the vacuum pipe back towards the engine from the
solenoid it goes through another solenoid (3way for engine cut off flap)
If that fails it can stop vacuum getting to the
only about £25 part too
I;m not a great expert on diesel turbocharger but they don't work quite the same as petrol. vanes move inside them move with vacuum which if they dont work just make the
run out of grunt under heavy load at about 70mph