After taking my stock 02 housing off, I learned that my 02 sensor threads were all messed up. So the person at the shop put a big plug in place of it until I get a new 02 sensor. My problem is that I bought a new 02 sensor but it wont be here in time before the tune. So my question is, will not having the front 02 sensor in place for the tune cause problems? Such as reading the air/fuel ratio? The plug that is in there, however, does not leak at all.
I really hope that it wont cause problems, but I needed to check with you guys first

Thanks

 

yes the fuel trims will be off, and the car may run ****ty in closed loop. should be ok for temp, it might get ****ty gas mileage vs before tho.

 

ARe you using factory injectors? if so you will be fine. If you are changing injector size you may want to hold off untill the car can log fuel trims. If it makes you feel better tho under WOT the o2 is not referenced anyway.