Also check out Mikes (Outnumbered) very helpful thread relating to boost code 6805. It's one of the green sticky threads on this sub section of the forum. If your car is Euro 4 then there are other things to check for as well such as the swirl flap arm.
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1996 850 T5 - Sold
2003 S40 1.9d - Sold
2004 S60 D5
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