Hi! I have a 2002 land rover discovery 2 which I recently noticed it rough idling and hesitating. I just changed the both catalytic converters out then coils and new wires. Both catalytics were burnt completely out and pushed into my muffler. I just tried pulling the MAF plug off it and running it... seems to run a bit better without it plugged in but now hesitates with loss of power when driving. I have ordered a new Walker MAF insert and am waiting on both upper and lower bank O2's as I'm sure they had also burnt out with the Cat's. Just wondering if I'm on track or missing something? Any info or help would be good. The Cats were making noise for a while now but the rough idling seemed to happen almost over night. Thanks!