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Old 13 May 2008, 05:31 pm
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Join Date: May 2008
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Default draining gas from 1999 honda 2?

Ok now i have a little more specific question. i have a line connected to the fuel line going into a tank ( i realize if this works the gas will come out with considerable pressure and have a 55 gallon drum for it to go in so that is fine) what I'm needing to do is bypass the low pressure switch like you would on an ac in order for it to stay on and pump the gas into the tank. can you even do that and if so where would that sensor be and how i could do it. Finally if you have some link of a digram on the piece id be working with or of the whole car i could get on line that would be much appreciated. i know this is a lot of question but money is tight gas is high and the help any one could give sure would be appreciated
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Old 13 May 2008, 05:46 pm
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Join Date: Aug 2007
Posts: 1,338

I'd recommend you go to Walmart or Home Depot and buy an inexpensive rotary hand pump that you can connect to two plastic tubes; one for in the tank and one for in the drum. you can then pump it out with low pressure by hand.the fuel pump will run for 5 seconds when you turn the ignition key ON (don't need to crank the engine) so if you want to use the fuel pump to blast the fuel out at 45 psi keep turning the key on and off. the pump is on a timer that you can't bypass as its the CrankAngle Sensor's start signal that controls the pump shut-off. the pump pressurizes the rack and if not start signal to the pcm after 5 seconds then the pump is shut off. there's no practical way to substitute for the start signal as the engine has to run to do using a cheap plastic hand crank pump is you're best bet. Also, when you do this, be sure to ground the fuel tank and the drum/ use a battery jumper cable between the two to prevent any fires from sparks or static electricity.hope that helps
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