66020 Oxygen Sensor Bank B Sensor 1 Heater, WHAT?

[hawaiianstyln]

for a wrap-up on this thread, DIY fixed the 02 Oxygen sensor code and sensor itself.  From a lot of literature online, WD40/Carb/Brake cleaners are bad for the sensors.  I took 600 grit to the tips to shine them back up and get carbon build up off (this really doesn't do much because the filament is inside), soaked both sensors in gasoline for 24 hours periodically using a small golf club bristle brush on the tips.  Apparently the chemicals in the gas is what eats everything off.  They looked brand new when I was done soaking.  left them sit to dry up for about 5 hours and then took a torch and heated them up just before they would turn red hot to burn any residual off the ceramic filament inside (I think that is what is inside these).  Plugged them back in, use the harbor freight 7/8's Oxygen Sensor socket ($6.99) and got the engine up to 160.  Turned the engine off and the perko switch off.  Did this 4 more times and the code disappeared, problem seems fixed.

 

 

Edited October 14, 2018 by hawaiianstyln