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Salesman of the year, you got any good stories?
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Posted 2/24/2021 11:53 (#8855186 - in reply to #8855151)
Subject: RE: Salesman of the year, you got any good stories?

Madison Co. Virginia
Olddeeres4ever - 2/24/2021 12:27

Aren't the electric fuel pump relays signal wired thru the oil pressure sender to prevent running a fuel injected engine without oil pressure? Story sounds a bit fishy to me. Maybe someone shifted it wrong, if a stick, causing it to toss the rods. Like 3rd rapped out back to 2nd! Instead of 4th , ouch!

The only engines I'm very acquainted with are the 1998-2019 LS-series engines. These are the ohv v8 engines produced by GM.

The ECM will not shut down the engine for low oil pressure on these. In fact, the oil pressure sensor can easily be eliminated without any consequence. The only computer control that depends on the oil sensor, is the active fuel management system and the variable valve timing on the gen-4 LS series. Neither of those systems is critical for engine operation, and would simply be disabled if the oil pressure is too low. The gen-3 LS series didn't use the oil input at all, other than to convert it to a data signal, and send it to the instrument panel.
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