Need help replacing small emission vacuum lines (brittle and broken)on top of XJ VandenPLas, 4.2L normal aspirated V8. Pictures attached:
line comes out of air intake, then immediately splits to 2, then appears to have two attachments, one is a T, one just a connecter. Appears to have 3 broken lines downstream, maybe all related. "check engine" light on due to emission sensor. How important are these lines? Can one just replace the lines with new vacuum tubing? If so, not sure of the proper attachment points (diagram would be useful).
Thank you,
RFG

 

On my 2005 XJ8L 4.2 V8 that vacuum line goes from the Fuel Rail Pressure Sensor to the inlet? It provides the FRPS with a vacuum? I think all you need is a non-collapsible pipe from the FRPS to the 'spigot' sticking out of your inlet?

 

EsRay
Thank you,
RFG

 

I had some problem with pictures so here goes again on the 2009 4.2L N/A.
Thank you, RFG