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| Replacing stock oil pressure guage/sender (Page 1/1) |
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Crash_out
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SEP 15, 11:44 AM
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I know the stock oil pressure sender includes a fuel pump circuit. I was wondering if I replace the stock guage with an aftermarket one, either mechanical or with its own sender, do I need to do anything with the fuel pump wire.
Also, seems like I heard somewhere the stock ECM monitors the oil pressure and won't allow the engine to run with too low pressure or no signal?------------------
Thanks!
-Nick
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fierosound
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SEP 15, 02:08 PM
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| quote | Originally posted by Crash_out:
Also, seems like I heard somewhere the stock ECM monitors the oil pressure and won't allow the engine to run with too low pressure or no signal?
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Wrong. You could have no oil in engine (0 pressure) and ECM wouldn't care.
The oil pressure unit only sends signal to gauge and a switch in the unit is a "backup" in case the fuel pump relay fails.
In that case, cranking the engine pumps up the oil pressure enough to close the switch and run the fuel pump and engine.
If you use an oil pressure sending unit without the fuel pump switch circuit - no problem (unless you have bad fuel pump relay).
.------------------
My World of Wheels Winners (Click on links below)
3.4L Supercharged 87 GT and Super Duty 4 Indy #163[This message has been edited by fierosound (edited 09-15-2021).]
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Crash_out
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SEP 15, 03:23 PM
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snyderman
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SEP 15, 10:05 PM
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Interesting. Let us know which oil pressure setup you go with.
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theogre
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SEP 16, 08:55 AM
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You can T both senders w/ standard pipe fittings. NPT ¼ or ⅛ for OE hole and sender.
Maybe too small size to see at big box stores... ------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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