('89 300zxTT RHD) I changed my spark plugs and had to move balance tube for 5 and 6. Now I hear a air leak(from tube) and I have to keep my foot on the gas for it to stay running... Also the tube won't screw on right on the passenger side. My main question is,can the balance tube prevent the car from running if it can't be screwed in all the way? Any ideas or suggestions?

 

Make sure the one backet is OVER the tube, not under it, and make sure you didn't mess up the orings.

 

The tube has to be installed correctly or you end up with a vacuum leak.