99 Honda Prelude crankshaft bult extremely hard to get off. Any suggestions?

I have a 99 Honda prelude and believe my crankshaft position sensor went out and so I'm trying to change it out, but in order to do that I have to first remove the crankshaft pulley which is held on by a single bult. I've soaked it in PB blaster for over a week, can't get it off with a breaker bar, a cordless impact, just all around pure strength. And it does supposed to twist counterclockwise to remove. I'm stuck at this point. Any suggestions?