7mge wont pass smog HELPPP!!!

[looneytune_2004]

ok so i have went to smog my car 3 times now and i have failed
i have failed in the measure if my HC (hydrocarbons) yet i have changed my plugs and wires to ngk all the way around as well as changed my o2 sensor. New vac lines as well as ive checked my timing and i am spot on, idle is fine yet i still get a nice epic FAIL. here are the results from my last 2 test

i didnt change the cap and rotor will that really make a big differance even though i scrapped an sandpapered them. and
here is my full chart test done on april 23/2011
@15mph CO was .10 and max allowed is .49
@15mph CO was .06 and max allowed is .40

HC(PPM)
@15mph HC was 142 and max allowed is 106
@25mph HC was 113 and max allowed is 58

NO(PPM)
@15mph NO was 459 and max allowed is 762
@25mph NO was 948 and max allowed is 701

compared to the test i did on march 31/2011 my results were as followed
@15mph CO was .14 and max allowed is .49
@15mph CO was .08 and max allowed is .40

HC(PPM)
@15mph HC was 179 and max allowed is 106
@25mph HC was 136 and max allowed is 58

NO(PPM)
@15mph NO was 365 and max allowed is 762
@25mph NO was 490 and max allowed is 701
in between the 2 test i had my wires and plugs changed to new NGK all around as well as right before the most recent test i had changed the o2 sensor with in like 10min of the test, as well as new oil and the car had been drivin to get it to opt temp. intake is the stock setup with a clean filter, now my exhaust behind the cat is 2.5'' which was allowed on the test as well as it has a new muffler as for the cat im not sure when it was last replaced because when i bought it, it had what looks to be a new one from 2006, now when i got the car the car was sitting outside for some time with the exhaust manifold unbolted from the block. as for the motor it came from my other supra which it passed smog last year in feb. of 2010. so can any one help with the new info given
thanx all