Hoping someone can help.
My golf mark 4 was cutting out. Garage had it in twice and reset computer after finding a couple of fault codes. This seemed to do the trick but now I have a new problem. The EPC light comes on on the dash board and then it loses power (but doesn't actually cut out).
This has happened twice. The garage have just had it in again to try and deal with this but after reseting the computer again thought they had solved the problem.

Can anyone shed any light on what might be causing this?? I'm reluctant to go back to same garage as they keep taking my money but not actaully fixing the cause of this.

It's a golf mark 4 1.4 engine.