00 civic si test pipe
Thread Starter
Junior Member
Joined: Jan 2009
Posts: 33
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From: california
00 civic si test pipe
I was thinking why do the check engine light turn on when I replace my stock Catalytic Converter for test pipe? Is there anything I could do to turn the check engine light off with the test pipe?
Senior Member
Joined: Oct 2007
Posts: 166
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i did some research and you can buy these 02 simulators. Or you can make your own. http://www.8thcivic.com/forums/bolt-...ace-cat-2.html this website has pics and alot of helpfult ips on how to fix that check engine light thats one with a high flow cat