Guest Anonymous Posted January 13, 2002 Share Posted January 13, 2002 My 280 will not run for any lengthy period without the gas cap loose and sucking air which is most likely due to a plugged vapor tank or lines.If you plug them make adequete ventilation for the gas tank. Mine sucks air and also blows air like a fat man going up a hill.I have removed or disconnected the vapor lines on 620 Pick -ups and vented the gas tanks via the gas caps with no ill effects Quote Link to comment Share on other sites More sharing options...
Miles Posted January 13, 2002 Author Share Posted January 13, 2002 There is a strong gas oder inside my stock 240Z. I inspected the vaper/expansion tank and hoses in the rear of the car. All hoses are new and secured to the tank fittings. I was gong to plug the lines but noticed that there is what appears to be a fuel return line from the engine comaprtment attached to the expansion tank. Is that small line from the engine to the expansion tank a vaper line or a fuel line? Can I plug all of these line without effecting engine performance? Quote Link to comment Share on other sites More sharing options...
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