hello,
does anyone have any ideas regarding a rough idle in a 20v? i have tried numerous solutions but i am out of ideas. in all i have replaced: plugs, wires, cap, rotor, injector, run cleaner through the gas, and the oil. if anyone has any experience with this get back to me
thanks

 

hi there im new to this would you be able to point me in the right direction in buying a 20v turbo engine for our quattro thankyou. clare and rob x

 

If your idle problem is an alternating high - low idle, you may have a vacuum hose leak. Check the hoses and replace the leaky one or an easier way may be to replace them all. Vacuum hose is fairly inexpense.
Rob F.

 

Don’t forget to check the rubber main intake hose this is a very commonly overlooked part but has a tendency to crack regardless of the make and model.