ntA4

I recently changed the MAF sensor after having the engine sputtering, then the car was running fine for about 2 weeks. Suddenly, a new symtom came up : at idle sputtering, shaking a lot and when driving as well. I did try to unplug the MAF, still have the same problem, also changed new spark plugs BURU Ultra-X part# UXF56, still have the same problem eventhough the turbo still spooling but weak. I know that the VAG-COM will find the soultion for me, but I can't get access to it. Any help will be appreciated.

paul_858

get a vag-com =)

Mark.core

It is practically undrivable .. (Only can be driven at about 5mph) because the car shakes and stutters. Don't know what the problem could be .. He has a GIAC chip and Miltek exhaust and that's it.

His father is a mechanic and has no clue (although an American car mechanic) .. Can't bring it to the dealer because of the chip, so who knows. Seems like it could be quite a few different things. He has half 94 octane and half 100 octane, both of which I have in my car from the same place, around the same time, so gas might be able to be ruled out. Beyond that I have no idea ... I'm gonna track this thread to see what comes up.

ntA4

I had the same problem couple weeks ago. I found out that the Mass Air Flow sensor was bad. I paid about $300 for the part but at http://www.vwparts.com/ is cheaper. Anyway, I am still able to drive at normal speed but it would take longer to get up there. It feels like I am driving without the turbo.

fastdream

sounds like a spark problem; don't forget the possibility of arcing wires.

robmaclay

If it gets running take it to the dealer, I have always gotten them to VAG my car for free.

Rob

g8keepR007

If it sounds like a go-cart .. and studders ... its MOST LIKELY a coil pack

Mark.core

Or ignition amplifier?!

g8keepR007

Not sure .. but that was the problem with mine