JettaGang
Well-known member
Okay so about 2-3 weeks ago Volkswagen finally “fixed” the whole emissions problem which took a whole day!!! they said the tune wasn’t downloading but as soon as I drove it off the dealership I noticed it was (high idle) at around 1k but I didn’t think of it... so a week past and it got really cold here in SC so as my normal routine I let the car warm up but I noticed a slight chatter noise (I do have a video) but it went away when I restarted the car and when I was leaving work it happened again.. didn’t think much about it now today my threw a cel so I call dealer they can’t get me in till Monday so I go by advanced to get it check it was P0401 improper flow bank 1 I believe could have VW emissions modification did this???