yo hows it going yall this has nothing to do about food but i have a mk5 gti 2007 its got a cold air + 4 inch downpipe + stage 2 clutch. i just put this engine in myself about 800 miles ago and recently it went into limp mode with a low idle and a loud clicking sound coming from engine also throwing camshaft coralation codes so obviously i towed it to the dealership and they told me it needed a new timing chain but i went ahead and threw in a new camshaft as well. they call me and tell me the cars ready so i go to pick it up and the car is doing the exact same thing it was so right now im pretty livid at the dealership because i feel like im getting scammed but its an actual volkswagon dealership and mow the guy im talking ot their is like ok well lets try to put new 02 sensors in it keep in mind ive ran it without them for the last 800 miles no problems so does anyone have any idea about what this could be its still on a stock tune but i dont see why it would be doing this. i have videos with sound from engine if anyone is interested or has any ideas. thank you.