Yes and No,if you have flow problem its possible there is no liquid around sensor and it wont read properly and will compensate to keep within pre programmed limits allegedly.
Wont do head gasket a lot of good either and O2 goes high when it pops due to burning the water.
Cost : Little as possible.
Thanks : To those who by their generosity my build has progressed.
Its a handmade sports car not a flaming kit car !!!
If at first you dont succeed,avoid skydiving...
No parachute require to freefall,only if you want to do it twice.