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Thread: LS1-B Oil Pressure

  1. #11
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    Mar 2009
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    Don't know if it applies to all trucks but some have OP signal input at the PCM on pin #58. It's a tan/white wire. Same one you'll see at the OP sensor itself.

  2. #12
    Senior Member whackem04's Avatar
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    Apr 2009
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    thanks big mike ive been all over the net and checked the haynes ill let u know
    01 GMC Sierra 1500 SLE 5.3 cam swap
    Tuned by ME (COS 5 - running strong and smooth)

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