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2016-08-17 07:26:19 Turbo now and then

Hello, I am new here. I would be happy if someone could give me an advice. I have a 2001 Ulysse 2.0 JTD EL engine. The turbo works only when I drive at 1900 Revs for a while; that seems to build the vacuum needed for the turbo to engage. Then the vacuum is depleted and the turbo stops working.

A vacuum leak? Does anyone have an idea about a most likely place for this to occur?

Does a faulty EGR have anything to do with this problem?

Or one of the three valves which are connected to a black box very near the front?

Thank you very much for your help in advance!


This is a discussion about the 2001 Peugeot 806 vehicle.

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