I have a 00 si and I have just bought an aftermarket catalytic converter. After about two hours of cruising in the car the engine light came on. I was told that it was because the o2 sensor in the cat since it is straight threw design. Is this correct and is there anyway I can get the o2 sensor to work with the new cat. without the engine light activating? Thanks for the help.

<FONT COLOR=#a8a8a8 SIZE=1 FACE=Verdana Arial>This message has been edited by jjpast on 02-03-2001 at 11:31 AM</font>