Mikeorock
Well-Known Member
Yes.. The defouler was clogged up with carbon. It's only a little hole that feeds air to the sensor. I'm cleaned it out.. Got the sensor to complete and I passed inspection. That's with a turbo kit with no cat and vit tune.. Pretty good!!!have you tried taking the o2 out to look at the tip? Even with the defouler in place, it may be a mess.