You can just disconnect it, it wont harm anything. However without a reading from the sensor, your computer will dump fuel into the engine, and youj'll always be running rich and lower your MilesPerGallon. So, you can just take it out if you want to, but theres no real reason to. You wont gain any performance out of it, only waste more gas.  Oh, and all that extra unburned gas in your exhaust will eventually destroy your catallytic converters. Longstory short, dont do it unless u absolutely have to.
Last edited by Archaniz; 05-15-2008 at 02:08 PM.