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Engine stops as soon as it starts
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Old 17 Feb 2012, 08:03 PM   #1 (permalink)
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Engine stops as soon as it starts

Hi,
I've just rebuilt my 2.0 turbo WRX after a blown head gasket. The engine fires up easily, but as soon as it starts, it cuts out. If I turn off and retry it starts again then cuts out again! I replaced the cam position sensor but that didn't help. Its as though the fuel pump is pumping just enough to pressure the system but not enough to feed a running engine. Is this possible? Could there be an air lock as the fuel lines were disconnected to take the engine out? How do I bleed the fuel system?
Any ideas welcome!
Thanks
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Old 17 Feb 2012, 08:45 PM   #2 (permalink)
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Re: Engine stops as soon as it starts

are you sure its not the immobiliser kicking in ?
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Old 17 Feb 2012, 09:33 PM   #3 (permalink)
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Re: Engine stops as soon as it starts

I thought that, but wouldn't that just crank but not fire?
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Old 17 Feb 2012, 10:04 PM   #4 (permalink)
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Re: Engine stops as soon as it starts

depends, if its just the fuel pump circuit that's immobilised then it would start and stop after a short time.
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Old 17 Feb 2012, 10:31 PM   #5 (permalink)
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Re: Engine stops as soon as it starts

That sounds very much like it. How can I check that?
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Old 17 Feb 2012, 10:44 PM   #6 (permalink)
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Re: Engine stops as soon as it starts

bulb or buzzer on the fuel pump plug under the rear seat, if it stops you know thats the issue.
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Old 17 Feb 2012, 10:50 PM   #7 (permalink)
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Re: Engine stops as soon as it starts

OK,
Thanks Bob, I'll check that out
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Old 03 May 2012, 09:57 PM   #8 (permalink)
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Re: Engine stops as soon as it starts

i have the same issue but on a 2002 uk model
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