Subject	Fuel system not holding pressure
Posted by	Dawei on May 15, 2012 at 5:19 PM
	This message has been viewed 266 times.
Message	Dissecting this thing again. I installed a fuel pressure gauge at the junction between the two halves of the fuel rail (the part with the injectors) and attached every piece of the fuel rail to it (plenum is still off the car, so it's just sitting there but it is all hooked up correctly). I turned the ignition over to the "on" setting, and the fuel pump engages and I get roughly 10psi on the gauge. If I turn the key to "off" and back over to "on" I get another 10 psi, totaling 20. The thing is that within a few minutes the gauge drops off to 0. my fuel system is not holding pressure, at all. I have no idea where it's leaking from, there is no leakage from the injectors or anywhere else visible, but I understand that at the rails my fuel system should pressure, that gauge should not be dropping. Any ideas how I track this thing down? My tank reads a little less than 1/4 full, but I doubt that would mean anything.
Follow Ups	Fuel system not holding pressure - Dawei 17:19:19 05/15/12 Re: Fuel system not holding pressure - Dawei 17:27:19 05/15/12 Pinch the return line shut using a quarter on either side >> - my91z 17:42:42 05/15/12 Do this^^ - Draker (Eugene, OR) 18:56:43 05/15/12
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