Hi guys ive just took my zvh turbo'd estate for its mot and its failed miserably on the emissions its showing 10.8% on the print out lol
Now ive had a look through my haynes book of lies and it say to adjust the screw by the air filter to adjust the mixture so ive borrowed a co monitor off a friend and had a go at it now if i turn the screw one way it goes up and if i turn it the other way it stalls the engine so am i missing some thing simple or has the haynes manual lied to me again ?

Cheers mark.