Quote Originally Posted by Tensa_Zanget
But that is the same cat that i got that my friend recommended me. He also got a crx with a ls/vtec and he mange to pass his emission test..besides if its the cat wouldnt i fail the HC ppm and CO %?
Nope. According to your emissions numbers, you have a lazy O2 sensor judging by the CO numbers. You want them to be anywhere near .20 or lower. You may wanna consider changing that sometime. But even then, that would show up under HC's meaning that the failing O2 sensor is causing the computer to dump fuel. But your HC's are in a controllable range so that's not part of the problem. The converter you bought is just like your stock converter; it's a 3 way catalyst. It has to get hot enough to burn off any unburned fuel (HC) and CO. It has to eliminate or seriously reduce the levels of NOx. Retard your timing and try it again. But ask for a pretest so you don't waste your second (free) test.