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Old 09-02-2010, 07:35 PM   #1
emsmap
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Default Fuel Pump or Ignition Switch? Please help!

Ok I just put a motor in my 1996 Impreza Brighton. I go to start the car and it wont turn on, it would just crank over and over. I took the fuel hoses off the filter and cranked it, no fuel came out! It had bad gas in it so I went and got gas to fill it up. I start the car and it started for 15 seconds and shut off so I pulled the fuel pump assembly out of the tank to manually check the fuel pump. When I put power from a battery to the pump, it works fine. I plugged the pump back up and turned the key a few times and never heard the pump. Car just turns over but only starts sometimes when the pump actually works.

On a side note, other problems are radiator fans kick on without the key in the ignition and the oil pressure and CEL lights are always on with no key. I have checked the fuel pump numerous times and the fuel filter. They both check out fine. My only thought is that the ignition switch is going out since the fans and dash lights are coming on without the key in. Please help me out lol
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Old 09-02-2010, 11:25 PM   #2
emsmap
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Im going to get up early tomorrow and try to figure this out. I am still thinking it is the ignition lock cylinder so I am going to get up and go order this hopefully. Please give me your input on what you think it is. Thanks alot!
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Old 09-03-2010, 10:50 AM   #3
emsmap
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bump for help
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Old 09-03-2010, 10:59 AM   #4
Jessekrs123
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Definitely some type of electrical problem. Check the ignition switch first and make sure it is working correctly. If your switch does check out then there is most certainly a wiring/electrical problem somewhere where constant voltage is being taken from an off ignition power source which could be the cause of your dash lights on and fans running with no key in the ignition. When your car won't start, everytime check for fuel, and spark, timing and compression shouldn't be a problem if it does run. I know my 93 would not start and I had no spark due to a bad ECU ground. Check out all grounds in the engine bay, every single one because the ground that was giving me problems was the one I did not thoroughly check.
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Old 09-05-2010, 11:11 AM   #5
emsmap
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Thanks alot man! I defiantly have spark on each plug after checking, Timing is good since it ran perfect for 15 seconds, I am just not getting fuel. Like I said, I checked the pump manually and it checked out, my problem is that the pump is not even coming on when I turn the key. Ignition switches are 160.00 at Advance Auto How would I check an ignition switch? Could someone explain? Thanks!
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Old 09-05-2010, 02:06 PM   #6
emsmap
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So I took the plastic around the steering wheel off to expose the ignition switch wiring, I unplugged it and the dash lights are still on. I plugged it back in a turned it on to accessories and still no fuel pump. This is so aggravating. I don't know what else to do. Any ideas?
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Old 09-05-2010, 06:34 PM   #7
emsmap
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Did a few things today, swapped ECUs from my automatic 1996 L and swapped the ignition switch, both did not work. So those two are eliminated.

2slo4u- I used the full 1.8L intake manifold, throttle body and harness on the Ej22 longblock with SOHC. All the plugs on the harness plugged in to all the components on the engine. The only thing on the motor that was not on the harness was the knock sensor. I just have the knock sensor unplugged.
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Old 09-06-2010, 07:11 AM   #8
Cougar4
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If you haven't checked the fuses in the dash and under the hood you need to do that. The fans are most likely turning on due to the diagnostic plugs being tied together under the dash. They are normally disconnected.

The fuel pump won't turn on with the key set to the accessories position. It has to be set to the ON or START position. Power to fuel pump relay coil comes from fuse 16 in the dash panel. Check the small yellow wire on the relay and see if power is getting to that point. There should be two yellow wires going to the relay. The other larger one is for the power to the pump.

Last edited by Cougar4; 09-06-2010 at 07:28 AM.
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Old 09-06-2010, 09:46 AM   #9
marecki777
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if your fans and dash lights are coming on it is not due to the ignition. what is happening is you are recieving power directly to these specific areas directly from your battery even when your car is off. you are getting a constant on which mostly likely means that the insulation on a wire is melted or worn off and is making contact somewhere. check your wiring and if its happening to more than one component, try to see where those wire pass eachother and that is most likely the are where you are having the problem.
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Old 09-06-2010, 11:49 AM   #10
emsmap
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Quote:
Originally Posted by Cougar4 View Post
If you haven't checked the fuses in the dash and under the hood you need to do that. The fans are most likely turning on due to the diagnostic plugs being tied together under the dash. They are normally disconnected.

The fuel pump won't turn on with the key set to the accessories position. It has to be set to the ON or START position. Power to fuel pump relay coil comes from fuse 16 in the dash panel. Check the small yellow wire on the relay and see if power is getting to that point. There should be two yellow wires going to the relay. The other larger one is for the power to the pump.
I have checked ever fuse in the car, they are all good. The 2 green diagnostic plugs have never been plugged in since I owned this car. I the fuel pump is coming on without the key in the ignition also
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Old 09-06-2010, 11:51 AM   #11
emsmap
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Default

Quote:
Originally Posted by marecki777 View Post
if your fans and dash lights are coming on it is not due to the ignition. what is happening is you are recieving power directly to these specific areas directly from your battery even when your car is off. you are getting a constant on which mostly likely means that the insulation on a wire is melted or worn off and is making contact somewhere. check your wiring and if its happening to more than one component, try to see where those wire pass eachother and that is most likely the are where you are having the problem.
Im going to give this another shot today. I will be working on this all day and hopefully find the problem. Wish me luck!
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Old 09-06-2010, 12:51 PM   #12
Cougar4
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There should be another set of connectors like the green ones. They may be black or white in color. Make sure they aren't connected also.

If the wiring hasn't been modified then the only way for the fuel pump and dash lights to be on without the ignition switch turned on phyiscally is a bypass problem with the switch electrically or the switch is turned to the wrong position compared to the key lock. Checking out a switch is easy. You use a test light probe or meter to check the voltage on the switched side of the contacts to check for proper power to the switched side of the contacts. Hopefully you have a good set of wiring prints to refer to otherwise you are going to waste a lot of time chasing this trouble down. There is no substitute for the factory wiring diagram and info.
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Old 09-06-2010, 01:34 PM   #13
emsmap
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Default

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Old 09-06-2010, 06:16 PM   #14
emsmap
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Default

I am not getting power to the fuel pump connector at all. So the problem is before the connector, maybe the relay?

Check this kicker out, out of the bleu my dash lights and fans just stopped malfunctioning and all that is fixed for some reason. WOW.... so now my only problem is the fuel pump is not whining when you turn the key.
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Old 09-06-2010, 07:18 PM   #15
Cougar4
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You need to see if the fuel pump relay is turning on. Check for voltage across the relay coil wires colored yellow and light green & blue wires at the relay. There should be 12 volts on them when the pump is supposed to be on.
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Old 09-06-2010, 09:22 PM   #16
emsmap
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On my brighton, the fuel pump relay is way up under the drivers side steering well. It is very hard to even touch it. Any tips on getting to it?
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Old 09-06-2010, 10:23 PM   #17
hotshot_xj
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of course i have a good idea its called cut the wiring and move it to the fire wall then just a buy a new relay done deal
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