I am not very mechanically minded but try my best so bear with me trying to explain this!

I've got a mk6 Rs2000 which is having issues.

Whilst driving it a while ago the revs suddenly went down and it was like there was no power even though the engine was still going, which is not the best of things when youre toddling round a roundabout.

Now it starts up fine then after a minute starts stuttering and the revs go up and down alot. Plus the emmisions are through the roof.

My dad being the lovely chap that he is has tried fixing it... i think hes changed most of the sensors on it and now the ECU is being looked at.


Basically what i want to know is if theres some common fault that is causing this or does anyone have any suggestions what might need replacing/fixing?