hey everybody, i need a question answered, hopefully somebody can help. ok so i took off my stock exhaust, put on headers/downpipe and a megan cat back system. the stock cable for the 02 sensor was about 6 inches short of reaching it. i got an extension for that cable from a buddy, but i havent connected it. i do have a check engine light goin off, which i knew would happen, but i was wondering....is driving without that 02 sensor in place going to cause any problems? i still have the primary sensor plugged in at the downpipe, its just the secondary thats unhooked.....so just wondering if its going to cause any damage if i run my car without that sensor...any help answering would be appreciated.

 

The second O2 sensor only checks for cat efficiency. The car will run fine without, it won't pass inspection though.