Boost problem

[europeanme]

do you get any black smoke on changing gear??....as this sounds the same problem as me...

[xgordyx]

Yes and no Mike, only when gearing down when it pops and back fires. I can't see it in my mirror, was my mate that said it to me when he was following behind me. But not during acceleration or cruising.

[Knight Rider S4]

Do you have a spare MAF to swap over ...sometimes they can be faulty but no appear on vag.com ..would check the plug connection as well as this can cause same problem

If you dont I can post one upto you to try if you want have a few spare

[xgordyx]

Are they the same as 3b? If so i've got one somewhere.

[xgordyx]

Ok, starting to get somewhere now,after changing the MAF car running much better now, no longer back fires and pick up is much better, but still holding back on wot. Had a good look at the wires from the MAF that have been cut a re joined and tbh they look grim to say the least. Going to have a look to see how much of the aby loom is the same as the 3b and if possible change what i can of it. Might pull the top of the wg and check the diaphragm too.
Started to get a bit of a grin while out on a quick blast then the alternator belt went, new one on order tho, will get it tomorrow