DSMTalk Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum banner

Drain Gas in a 2g AWD?

6.1K views 11 replies 4 participants last post by  tarantula  
#1 ·
So I have over a year old tank of gas I need to get rid of, and am curious how to do so. I have been told there is a plug to drain it but I do not see it and neither of my manuals show one, one book says drain tank as instruction #2 for removing the tank! WTF? I tried to syphon but cannot reach with all of the filler neck bends. So I started to drop the tank this morning, relieved the fuel pressure, removed exhaust, driveshaft, shilds and so forth, but this really sucks. Is there a better way? I have searched... Thanks guys - Jason

Oh yeah, it was really funny (I am sure) watching me try to syphon my tank this morning, very violent heaving and throwing up noises, neighbors were looking out of windows at me, after that I could not stop laughing... High? Maybe, but I had fun.
 
#2 ·
This is kinda stupid maybe, but why not take off the return line off of the rail, put a hose on it to a can and jump the fuel pump....... Or pull the sending unit plate and siphon it out..........???????????????
 
#3 ·
Is the sender plate the other one under the rear seat? (Driver side?) I was wonderin if I could do something like that...
Thanks for the response.
-Jason

Wow my spelling sucked in my first post, sorry mods...
 
#5 ·
So you think the return lays on the bottom of the tank? Just looking at it I figured it just hung in from the top and dripped down(not actually submerged @half a tank). But I will try that out, thanks man.
Jason
 
#7 ·
The return line on the fuel rail that connects to the FPR ...... That or pull the two 10 mm bolts on the pressur side of the Rail. But if you have alot of gas in the tank, only let you pump run a couple minutes, then let the pump cool down, the do it again. So you dont kill you pump.
 
#10 ·
On all 2G's there are 2 plugs and on the 95-96 versions there are 3 plugs. These plugs hang on the firewall near your battery. The 95-96 models have a Brown round plug and two spade type plugs. One black and one blue. The rest of the versions (97-99) have just the Black and blue. The black one is the one you want. Put a paper clip in the black plug and connect a wire from that paper clip to the positive terminal on the battery. Do this with the car COMPLETELY OFF. When you connect this BLACK plug to the positive battery post, you will Turn on the Fuel pump. So what you do to drain the tank is pop off the return line and connect a long fuel line to the FPR. Route the longer fuel line that you connected to the FPR to a container or another cars tank, or whatever you want to use to store the fuel. Than turn on the pump. You will drain the tank.
This Black plug is the Test plug for the fuel pump. The blue one is to measure the RPMs with a multimeter. (It will show you half of the Rpms so you multiply it by two to get the real rpms)
And for the 95-96 models the brown round plug is to ground the ISC motor for when you want to check that timing is correct and to set the BISS screw on the Throttle body. When you ground this brown plug, it will center the ISC motor and the ECU will not try to adjust it therefore making adjustments to the BISS screw more accurate. In otther words the ECU will not try to fight your adjustments. The 97-99 models don't have this so grounding is done differently. (Which I won't go through the procedure in this thread.)