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Old 11-23-2009, 07:30 PM
ImpalaSS1965 ImpalaSS1965 is offline
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Re: Does a GM oil pressure switch serve as a fuel cutoff ?

On some 350s, there are actually 2 Oil pressure sitches. One bell Shaped , one lead, that sends info to the dash light. I don't believe this one impacts the ec system. or the fuel pump. Then there is another more traditional shaped switch (2 or 3 prong) that does serve as a fuel pump shut off.

On the 305, the single 3 prong switch serves both these functions.

My wiring diagram that I purchased does not match reality.

Also, in the Haynes manual, I can't even find a referece to an oil pressure switch.
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