QUOTE(celicomx @ May 30, 2006 - 4:07 AM) [snapback]439191[/snapback]
i put some 93-97 corolla headers on my celica and i don't make a custom work for the O2 sensor and i have no engine light coming up! and the car idle's perfectly im pretty sure that they not need too many work
Mine did fine for about the first year without the O2 sensor but now I can't keep the code cleared. So the easy fix is to get the O2 sensor inserted after the second cat.