Okay i know it might be a stupid question because i know the thing monitors the engines waste and uses the data to tell the car how to fuel etcc.
i got a full stainless system fitted a few months ago and instead of drilling new holes for the lambdas i just tied the rear one to the undertray (post cat) I thought when i got a remap it put a full new map on your car to basically delete the lamdas, my bad. plus i couldnt be assed with my EML light being on and limp mode all the time till i could afford a remap. so now the cars fueling like shit and absolutely stinks of petty.
i've drove it like this for a while now could it of done any damage?
if it has is there any way to repair any possible damage and flush it?
also i know to refit the lambda i will need a boss, where can i get these and how precise does the job have to be?