There's an age old (possibly myth) telling that open exhaust systems or systems with leaks would burn exhaust valves.
If there was a loose oxygen sensor such that a small amount of exhaust possibly blew past it, how likely would it have messed with things? If the oxygen sensor was totally gone would that change enough back pressure to damage valves?
If there was a loose oxygen sensor such that a small amount of exhaust possibly blew past it, how likely would it have messed with things? If the oxygen sensor was totally gone would that change enough back pressure to damage valves?