As title, for the past couple of months, ive had to put a spacer on my 2nd lambda sensor to stop the emmisions light coming on...sumone sed I could remove it once Ive had a remap as its something to do with the parameters etc...is that true? as i need to sort my exhaust out as its rattling at the mo on the rear subframe, and would remove the spacer same time now ive got a map.
let me know