Ok... how did you guys unscrew the sensor without removing the UIM? A 19mm open end wrench? The biggest one I have is an 18mm, and it just barely doesn't fit. I can't get on it with anything else, but it looks like it might be hard even with the open end wrench.

Take the UIM off. https://www.nopistons.com/forums/pub...IR#>/boink.gif