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Re: 94 need help
Quote:
Originally Posted by MT-2500
Oil pressure is not a fuel pump shut off switch but is on there to aid in case of relay fail.
Oil pressure switch does not shut off fuel pump relay.
Oil pressure switch is a saftey switch to keep fuel pump running in case fuel pump relay fails.
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Oh really.... I think you need to recheck your data there chief. Since the 80's GM has been using that feature to avoid catastrophic failures. The oil pressure sensor does not turn the fuel relay off. The ECM turns "fuel relay request" off at detection of low oil pressure. A faulty oil pressure switch will give the ecm false info and cause it to shutdown the fuelpump. Atleast that is what the GM instructers teach. Have you attended such a class ??
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Last edited by CalifOkie; 09-27-2009 at 11:12 AM.
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