#3 cylinder misfire

All the codes that were coming up said these parts were intermittent my timing belt shredded. I have 175k mileage

codes don't tell you what parts are bad they tell you the circuit has problems. what size motor? poss bent valves? do a compression test on all cyl's. should be within 30% of each other.you said timing belt was replaced,belt breaking is another story. this veh.has been known to bend valves.