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Hi All still battling with my 407 and lose of power i have read fault codes which are p1457 p 13151 p0299 i no that one is a dpf fault but would this cause lose of boost ? at some stage im going to get a remap to do away with dpf and as for the other two i think they are associated with vacuum all the pipes look ok and some have been replaced with rubber instead of the hard plastic variety but what i have noticed is on the front of the engine block on the left there is a boost valve with 3 pipe outlets that you can see easily but it only has 2 pipes connected is this normal ????????????? please help as its starting to depress me :confused:
 

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I had similar feelings about my 407 until i added 'Wynn's Diesel Particulate Filter Cleaner' to a tank of diesel..... significant improvement to say the least!:thumb:
 

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