Fuel pressure regulator vacuum line

This regulator just uses manifold vacuum. So basically, it is going to have a line running to the manifold which is most likely going to have a multiport connector for the vacuum. This means there will not be a nipple on the manifold for every connection that requires vacuum. There will be a splitter that will allow each to have manifold vacuum to each of them.

Here is a guide that helps with checking pressure which is a good idea any time you have fuel pressure issues:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please see the info below and let me know what questions you have.

Thanks