As previously mentioned it is driven via the ecu, I think, not a low oil pressure switch.Here is what the WSM says about sender and instrument. Seems like low pressure warning can be calibrated/adjusted. Wonder how ? The resistance is also different between the sender unit and instrument gauge. And like Allan said warning light is rpm related.
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Anyone ever try this? Or recommend others? I replaced mine with a David Askew one a few years back but think this might be on the way out now - had been happy with it.I've read that FAE 14030 is compatible with 3200's.