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Old 02-28-2012, 11:33 PM
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dumping fuel in oil

it's a1990 Corvette 350 Base model, new fuel pump, new filter, new pressure regulator, new wires, new cap and rotor, new intake manifold gaskets,new plemumn gasket new sensor, waiting on hose from heater core to surge tank so no antifreeze yet, gas just fills up oil as soon as I try to start it, it runs for a few seconds then fouls out and it never idles, there was 2 plugs under brake buster, one was fuel pump check connecter the other made the fuel pump run with key on, I hooked it to the battery Positive, should it go some place in the harness, if so where thanks for your help

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Old 03-02-2012, 08:02 AM
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Your injectors are most likely going to full open when you hit the key for some reason. This means that the ECU is enabling the fuel pump and all the injectors at one time for some strange reason. As to what is causing this...not sure. If you had a known good ECU you could try, I would start there.
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Old 03-02-2012, 08:03 AM
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Wait, did I just read that you hooked the fuel pump to the battery? If so, is it running constantly with key off?
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Old 03-02-2012, 06:03 PM
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Quote:
Originally Posted by TurboS10
Wait, did I just read that you hooked the fuel pump to the battery? If so, is it running constantly with key off?
You can do that and fuel will just flow through return line to tank. All GM systems run 2 seconds key on to prime system before starting.

But they do not open an injector!

Unless you re-wired something very wrong I don't know how the ECM is opening an injector? You may have a faulty injector stuck open?
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