Think I found the bad running problem

[darren1.8t]

Right guys I found my crank case breather all taped up and another pipe next to it was squashed its the lower breather the one that's a s...t to get to will this cause running and holding bak issues? Cheers again guys

[MoshiMoshi]

I had both of these pipes replaced, never improved any running issues. However, it did stop petrol vapors from making my engine bay smell. Running issues are 90% of the time coil packs, MAF sensors, air filters, or possibly spark plugs and injectors. Have you tested ALL of these for issues?

Good Luck 

[darren1.8t]

new plugs fitted today but still running bad I will replace the crank breather etc tomoz and see for air leaks

[sharki786]

Tried cleaning the throttle body?

[darren1.8t]

no mate gonna try it today and look for leaks etc

[sharki786]

I would also change the throttle body gasket (its green) tps or vw will have it in stock