oil pressure switch
Thread Starter
Junior Member
Joined: Feb 2008
Posts: 33
Likes: 0
From: California
Car: 67 Camaro/91 Camaro
Engine: 350/3.1 v6
Transmission: M22/stock
Axle/Gears: 3.73 GM 12 Bolt/stock
oil pressure switch
i just changed the oil pressure switch on my 91 v6 camaro and the fuel pump stays on even when i turn off the car. i unplugged the switch and the fuel pump turns off so i know it has something to do with the switch but i dont know exactly whats going on
Supreme Member
Joined: Jan 2003
Posts: 2,133
Likes: 4
From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Re: oil pressure switch
Power to the OPS is from a HOT at all times fuse near the battery so OPS might be faulty, not correct type (normally open switch, but I doubt that,) or you have a short. Do you have the oil pressure/gauge combo, or one sensor for each?
Thread Starter
Junior Member
Joined: Feb 2008
Posts: 33
Likes: 0
From: California
Car: 67 Camaro/91 Camaro
Engine: 350/3.1 v6
Transmission: M22/stock
Axle/Gears: 3.73 GM 12 Bolt/stock
Re: oil pressure switch
how do i find out if i have both... when i went to get the part thats the only switch that came up
Senior Member
iTrader: (3)
Joined: Feb 2007
Posts: 659
Likes: 0
From: Tucson, Az
Car: Don't
Engine: have
Transmission: it
Axle/Gears: anymore
Re: oil pressure switch
I'm having the same issue on my '89 GTA with the fuel pump staying on. I recently had an '88 GTA engine harness retrofitted to fit mine (mine was a POS) and since then I've been having this problem. The first time I drove my car since the transplant, it stayed on about 3-4 min after I turned it off and figured it was probably a relay that needed replacement. It has since then gotten worse and the pump now stays on for about 30min. or more and I have to unplug the ecm connector by the battery to shut it off and vica versa to turn it on again. I noticed you mentioned the 3-wire connector to the OPS. The '88 GTA harness OPS connector has 2 wires while mine ('89 GTA) has 3 so theres 1 wire thats unused and its a tan colored wire. Would this be the cause to my problem?? what can I do to fix it?? Thanks in advance.
Phoenix
Phoenix
Senior Member
iTrader: (3)
Joined: Feb 2007
Posts: 659
Likes: 0
From: Tucson, Az
Car: Don't
Engine: have
Transmission: it
Axle/Gears: anymore
Re: oil pressure switch
I'm having the same issue on my '89 GTA with the fuel pump staying on. I recently had an '88 GTA engine harness retrofitted to fit mine (mine was a POS) and since then I've been having this problem. The first time I drove my car since the transplant, it stayed on about 3-4 min after I turned it off and figured it was probably a relay that needed replacement. It has since then gotten worse and the pump now stays on for about 30min. or more and I have to unplug the ecm connector by the battery to shut it off and vica versa to turn it on again. I noticed you mentioned the 3-wire connector to the OPS. The '88 GTA harness OPS connector has 2 wires while mine ('89 GTA) has 3 so theres 1 wire thats unused and its a tan colored wire. Would this be the cause to my problem?? what can I do to fix it?? Thanks in advance.
Phoenix
Phoenix
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