Can anyone help. My polo gets to very low revs and cuts out when slowing down, almost to a stop (at traffic lights, at round a bouts, turnings etc)
Has it to do with tuning?

 

Welcome to the forum William.

You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing.

https://volkswagenforum.com/forum/ne...gnature-34185/


Post moved to the correct section.