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Question concerning fuel pump power(long)

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Old Jun 18, 2006 | 01:58 PM
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Default Question concerning fuel pump power(long)

Background: I was at the track and when I launched, the car fell on its face. I continued to pedal through and eventually lost fuel to the engine. (The engine quietly died..all light in the dash remained on as though I failed to start the car.)

The Battery was fully charged and still running strong.

I had 3/4 tank of gas.

After it fell dead, I tried to restart it on the return road. No luck as it just kept cranking and cranking.

I could not hear the fuel pump kick on so I automatically assumed It was toast at 80K miles.

I purchased a walbro 255 intake pump and installed it.
When you turn the key on, I get brief power to the pump (2 secs) then that's it.

I have checked the fuses and the relay under the hood.

If I bypass the fuel pump relay under the hood, you can hear the fuel pump kicking on and staying on. (If I try to crank the car, it will just keep cranking. It will not fire up.)

So, this leaves me to the question, If I have fuel and yes my ignition is sending spark, what else could it be? I've double checked my ground leads and everything seems to be intact.

I have LS1edit and VATS is disabled!
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Old Jun 19, 2006 | 12:51 AM
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If it definately has spark get a fuel pressure gauge and make sure you are getting decent fuel pressure. If it has pressure and spark it could be a lot of things from internal engine problems to blown injector fuses..
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Old Jun 19, 2006 | 09:03 AM
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fuses are intact..I'm going to pick up a fuel pressure guage today.
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Old Jun 20, 2006 | 11:22 AM
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are you sure about the vats?
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Old Jun 20, 2006 | 01:10 PM
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I found what I hope to be the problem...Dead PCM...DTC code P0601. PCM/VCM memory...remedy = replace PCM
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