Air box/ breather box question...

[Kdplyn]

I've got a miss and some hesitation in my 90 renix. While checking around the vacuum lines I found out that by disconnecting the line going to the breather box my idle speed jumps up and it runs better. Now this line, according to the vacuum diagram, goes to the bi-metal temp sensor. Other than opening the breather up to warmer air what good it this? I can't find it listed online at the parts stores... so could I just run that line to the breather with out that sensor? Thanks for your help...

[Matthew Currie]

Try it and see, but be sure you either block or clamp off the vacuum line. Don't leave it open. The increase in idle speed could just be from the vacuum leak. It won't really run better with a vacuum leak, even if it idles faster.