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Old 07-03-2007, 11:06 AM
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Re: 94 lesabre starts, immediately stops

Forget about the oil pressure switch. It does not interrupt power to the fuel pump. It is there only as a redundant path for power to the pump. If the FP relay fails, the pump will still run on the pressure switch. Study your schematic.

What happens to the "Security" light when the ignition key is inserted and turned to the RUN (not START) position?
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