k the shop is closed where i bought my o2 sensor from. i lost the little wiring diag for my downstream walker o2 sensor. can anyone tell me which wires goto which?

i think it is:
black to blue
grey to white
white to black
white to black

 

delete this thread. i got my ol trusty multimeter and figured it out. turns out my heater is bad...time for an o2 sim!