Can I bypass the Oil pressure switch?
Thread Starter
Junior Member
Joined: Feb 2005
Posts: 80
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Can I bypass the Oil pressure switch?
If i wanna by pass the switch can i just connect the wires and run the third one to a gauge?
I'm swapping from tbi to carb. so i'm trying to get rid of all the relays and computer. to clean out the bay but with out the oil pressure switch the car dies.
I'm swapping from tbi to carb. so i'm trying to get rid of all the relays and computer. to clean out the bay but with out the oil pressure switch the car dies.
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Can I bypass the Oil pressure switch?
If you do that, your fuel pump will run continuously.
Supreme Member
Joined: Apr 2002
Posts: 3,552
Likes: 5
From: New Jersey
Car: 86 Corvette, 89 IROC, 1999 TA
Engine: 350, 350, LS1
Transmission: 700r4, 700r4, T-56
Axle/Gears: 3.07, 373, 4.10
Re: Can I bypass the Oil pressure switch?
just leave it in place and wire the fuel pump relay to engauge with the ignition in the run position to power the pump. It will function as a backup for the fuel pump relay should it fail like it does in a factory setup. Depending on what year you car is it may also send the reading to your oil pressure gauge. Also unless your fuel pump relay is bad the engine will not die without the oil pressure switch, it's not a saftey switch, it's a backup for the fuel pump relay. Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Can I bypass the Oil pressure switch?
When switching to a carb the fuel pump relay becomes useless and you'll need to rely on the oil pressure switch.
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