oil pressure in relation to the PCM

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Apr 3, 2013 | 10:41 PM

3rdCoastPowerSports

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From: Loony Bin

oil pressure in relation to the PCM

does the PCM have to see oil pressure in order to work properly. I am working on a hybrid that has the oil pressure sensor removed and a mechanical gauge put in its place. Motor just cranks and cranks. I remember reading something in the FSM a few years back about the computer having to see at least a few psi of oil pressure before it will allow the motor to start. Is this correct? or can you completely remove the oil pressure sender and install a mechanical gauge without running in to any issues?

Apr 3, 2013 | 11:38 PM

OhTwo

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From: Urbandale, IA

I think it should work without seeing oil pressure. I broke my sending unit when I did my heads/cam swap and as I remember it started but showed no pressure which is when I discovered I broke it putting everything back together.

Apr 3, 2013 | 11:43 PM

im-not-guilty

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From: Maine

This is a ls engine not a lt1 engine correct

Apr 4, 2013 | 06:51 AM

gagliano7

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From: Monroe,NY

I put a 2004 5.3 with a 1999 pcm in a 1992 chevy pickup and i have the trucks oil pressure sending unit installed. I have no oil pressure signal going to the pcm and truck runs fine.