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Just want to make sure I didn't screw up working in the dark. Which hose goes to to the port marked "HI" and which goes to "REF"? I'm afraid I might have crossed them.
I just answered my own stupid question. The hoses look the same on the outside in the dark but I disconnected them again and looked closely. The inner diameters are different making them hard to mix up.
It just didn't look right to see the rubber hoses crossing over each other to connect to my sensor after I was done changing it. Other engine pics I saw online appear to have the hoses running parallel and not crossing over each other.