hui, your english is to hard for me, for me little german man!

Which engine do you mean with the YBT? i never heard this code!

I have a little problem with my St170 enginge.
I mounted the HEGO Sensor down behind the engine (like on the first Zetec exhausts) but when i´m gone kick his As it glow´s realy hard red/yellow until under the car and incl. the HEGO Sensor and me messureing goes slightly to lean!



Up to which temperature the HEGO sensor will work?

Cheers Mark (sorry for this english!)