corsa 1.2 16v issues

Got a corsa at work that no-one can get to run correctly, when on idle it runs very lumpy and when its reved it bogs down. We plugged it in to one of them shufty doofers and the error displayed was an air mass problem to we changed the AFM but it still runs kak.

Anyone got any ideas? Cheers in advance! :thumb:

Hole in one of the inlet pipes or something like that?

Yeh it was in ealier on in the year as the pipe off the inlet that goes to the brake servo had come off resulting in no brakes but its been fixed and we have checked that out again. Ill get them to check out the other pipes.