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Where did you get that?


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The 3.5L engine shown in the factory handbook has a "plug" in that port. Similarly to Larry, I don't think we've ever seen an oil pressure sensor installed on any 3.5s we've worked on.

The presence of two cables suggests that an electrical OP gauge was installed in the automobile at some time.

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I now wondered whether it wasn't a "block heater" customized for use in regions with harsher winters. Does ohming help? Perhaps with the ignition and motor both switched off? I have no idea what it may be and am just guessing. Variable resistance when running or stopping might be indicative of a pressure device. If the resistance remains the same in both states, it might be used as a heater. The cables seem bulkier than what's required for a transmitter.

That's just my guess, however.

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