can I clean the o2 sensor?
so I blew some welds on my GReddy header (didn't crack this time) and I noticed my o2 sensor was basically all black with carbon. would it be bad to spray this sensor with carb cleaner or something? I noticed most people just replace this sensor and I'm assuming "no", but the Bosch ones are so expensive :\
my car runs fine, so if I can't clean it I'll just put it back in. runs a little rich, but black bumpers don't bother me.
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