I am working on getting my '89 XJS convertible put back together, and I am realizing I did a terrible job of tracking the vacuum connections. I have been trying to use the diagrams under the hood, but there are a few things I can’t seem to figure out. I apologize if these are dumb questions or answered elsewhere, I have tried to find answers in the forum, but to no avail. Here are the questions:
- On the back of the right intake, there are four vacuum ports. The diagram notes one is for the ECU, but when running some air through the line from the trunk, its clear the line is attached someplace else as the air runs through the vacuum system. I also saw on some forum posts that this connects to the crossover manifold pipe, not at the right side intake. Should I just plug up this port? Is there a second vac line to the ECU?
- Does anyone know what the vacuum port on the front of the left intake manifold should connect to? See pic:
- There is a line coming off the canister on the left side that has a T and two short hoses. I can’t find where this one should connect either. Could be related to question 2, but i am then not sure where the second connection might go. Pic:
Thanks for any help here, I really appreciate it!