Cleaning up Innovate Wideband O2 sensor

[4gfun]

I run my innovate O2 sensor in the stock O2 location and have eliminated the stock O2 sensor and have the innovate simulating the analog signal.

Just recently, the car has been running perfect in open loop but hardly runs once it goes into closed loop.

I had the car in pieces when I was running it in closed loop so a large vacuum leak may have caused this.

Still, I have read somewhere that you can clean them up. I'd rather try to clean it than buy a new one.

What can I clean it with, or is there a chance that I may wreck it if it is not wrecked already.

Thanks