My polo vivo 2012(137km) started to have an unsteady idle. So I used the Ancel VD 500 scanner picked up a misfire on clinder 4 so I swapped coils 4 and 2 around and then cleared the error code to see if the error would persisted then I would know if it was the coil or the plug. The EPC hasnt picked up any issues yet , however the idle is still unsteady. The car still has power
(all 55kw ) no smoking or Leakes . Wander what can cause the irregular idle ,just did 135k service a month ago. I was thinking to perform the throttle body function using the scanner however it gives me 3 potions the only one the seems to anything is "channel 1:60" the other two
Channel 1:98 &
Channel 1:01
don't do anything. Can anyone tell me what the channel options mean. air/fuel perhaps ??
Thank you kindly for any advice.