Not sure if anyone can help but here goes , 1998 zx-2 replaced the exhaust it was rotted and had leaks ,a month later code po340 set . replaced the cam sensor and both 02code came backon any ideas

Hi got no responses to this ,but anyway car sat at firestone in levittown for two days they either could not fix this or did not want to fix it . Car went to a shop in bellmore . within 2 hours he knew what was wrong with the car . His engine guy picked up the car . Appears that the timing belt jumped a few teeth . At 90,000 miles guess its time . As this shop is very busy right now not getting car back until next week some time . Just glad that someone was able to find the problem . As we are dealing with a 20 year old car if i can get 2 or 3 years out of this would be fine with me . by then should be in better shape to buy a new car .