g/f just bot a 91 accord for son. It has failed the Missouri emission test for high levels of HC. I first changed the plugs. wires, air filter, pcv valve. It failed again but the levels came down but not enuff. I have since replaced the O2 sensor, fuel filter (it has some hesitation at very slow speed when gas applied) i took off egr valve and cleaned (it wasntr bad at all) cleaned throttle body changed oil and filter replaced valve cover gasket(was leaking small amt of oil) new distr cap put on.

what else could it be besides cat converter? also how do I get rotor off the distrib?

shop wants 100.00 to put on a machine to tell what exactally wrong..I think thats BS. I havent had retested yet because i want to replce as much as possible before buying new cat converter.

my g/f put some stuff that was supposed to guarantee it pass but it didnt (in the gas).

any ideas would be greatly appreciated.

TIA