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2002 wrx sti starts but shuts off need help
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Old 17 Mar 2013, 11:08 PM   #1 (permalink)
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2002 wrx sti starts but shuts off need help

Hello I have a sandrail with a 2002 wrx sti engine in it. It was my fathers he built it but has passed away. The car has been stored for the last 5 years I have been starting it once and awhile. The last time I went to start it the battery was done I needed to replace it. After I did the full pump was out and I replaced that now it starts but shuts off right after. I can't seem to find the cause and I know nothing about the engine or sensors. I am really screwed the car is a buggy and the wiring harness is not all together and is probably only has just enough to make it run. I hope any of you guys have heard of something like this and can point me in the right direction I would greatly appreciate it.

Thanks a lot
Ryan
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Old 18 Mar 2013, 07:27 AM   #2 (permalink)
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Re: 2002 wrx sti starts but shuts off need help

sounds like your immobilliser is kicking in tbh
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Old 19 Mar 2013, 12:00 AM   #3 (permalink)
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Re: 2002 wrx sti starts but shuts off need help

Thanks I will check that. Someone said it might be choking out from something because I can keep it running with starter fluid. Any thoughts on that or does it make it look more like the immobilliser?

Last edited by ryanstump; 19 Mar 2013 at 12:18 AM.
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Old 19 Mar 2013, 02:36 PM   #4 (permalink)
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Re: 2002 wrx sti starts but shuts off need help

Is the fuel pump ok?
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Old 20 Mar 2013, 01:27 AM   #5 (permalink)
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Re: 2002 wrx sti starts but shuts off need help

I replaced it and it is pumping great the fuel lines exploded because they were old I replaced all of that. My father placed a fuel pressure gage with a handle to turn it up and down I set it to65 psi. It drops down right when it starts but jumps right back up then dies.

Last edited by ryanstump; 20 Mar 2013 at 01:41 AM.
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Old 20 Mar 2013, 11:52 PM   #6 (permalink)
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Re: 2002 wrx sti starts but shuts off need help

Quote:
Originally Posted by bugeye_bob View Post
sounds like your immobilliser is kicking in tbh
i looked up the immobilliser and it looks like it's part of the key or ignition of some sort. all of the electronics for an alarm or anything like that has been removed. there is a computer for the EFI but that is it. would what you are asking be in the computer of the EFI?
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Old 21 Mar 2013, 12:33 AM   #7 (permalink)
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Re: 2002 wrx sti starts but shuts off need help

OK fixed it it was a device that was in between the air intake and the air cleaner. the plug was kind of and gimme rig setup and it was half coming out. i pushed it in and tried it and it fired right up and stayed running. i must have bumped it when i replaced the fuel pump. thanks alot you guys for your time and your suggestions.
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Old 21 Mar 2013, 08:53 AM   #8 (permalink)
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Re: 2002 wrx sti starts but shuts off need help

so the Maff sensor plug
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