ok i have a 97 integra LS. i removed the OEM catalytic converter. i put in a new High flow cat. basically its a straight pipe. i put both O2 sensors back in the right spots. should i be getting a CEL??? im thinking its coming from the sensor with the new Cat. you guys think that might be it? if it is then im probably just gona throw my Oem cat back on.

 

if its a test pipe then u will throw a cel. if it was a high flow cat then u would not.

 

ill assume you bought one from ebay for 25 bucks and thought it would work... no just throw the oem cat back on or buy a high flow it doest make that much of a diff unless your pushing some heavy power and ur state has no emissions

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92DAIntegraXSI &raquo;</TD></TR><TR><TD CLASS="quote">ill assume you bought one from ebay for 25 bucks and thought it would work... no just throw the oem cat back on or buy a high flow it doest make that much of a diff unless your pushing some heavy power and ur state has no emissions</TD></TR></TABLE>

 

it is because of your secondary o2 sensor, it happened to my friend with his car when he put on a test pipe

you can get a simulator that plugs into the secondary o2, or convert to OBD1, but I would just put the stock cat back on, and call it a day