Code P-1494 need help
I did a search here and found some info but not enough,so Help if you can please. 1999 GC check engine light came on I pulled code P-1494. It is the Leak Detection Pump pressure switch. I need to know where it is located and how to fix it.
UPDATE: Using the diagram that Joe furnished I found some vacuum lines that were worn out.I replaced these hoses and reset computer,Check engine light is off vehicle runs good,so maybe that fixed it.Thanks