peugeot 406 51 reg 2.2 hdi anti pollution system defective when tested it comes up turbo boost high can any one hel
-- mickysss
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See if the egr valve is still working. Very likely it is sticking in open position. Do you also have some lack of power ? This is the valve between inlet and outlet. It is operated by vacuum. The corresponding valve is located under the window ( one out of three i think).
Good luck.
comes up turbo boost high can any one help
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