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Author Topic: 85 - 87 vs 88 Oil Pressure Sending Unit  (Read 15103 times)

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Donster

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85 - 87 vs 88 Oil Pressure Sending Unit
« on: January 16, 2019, 04:00:24 pm »
As to my question in another thread about an unknown part, things have become a bit more clear now.
And I must say, the PO is starting to P me O!
He obviously replaced the original 88 OPS with an 85-87 OPS, which has a different connector. He cut the original connector off and just crimped on standard connectors. He also only had one wire connected to the OPS, the other 2 were just dangling there.
While I still have the original connector, I still would need the correct wires/colors and to which terminal they connect. Can't find wiring colors in the 88 SM, but I also need the wire colors for the 85-87 connections.Can somebody provide?
Thanks.
\D
« Last Edit: January 16, 2019, 05:06:46 pm by Donster »
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GTRS Fiero

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #1 on: January 16, 2019, 06:35:06 pm »
Here you go.


Donster

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #2 on: January 17, 2019, 04:55:10 am »
You da man!

Thnx

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Fierofool

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #3 on: January 17, 2019, 09:16:31 am »
Here's my conversion from 85-87 to 88 thread.
http://www.gafiero.org/bbs/index.php?topic=1642.0
There are three kinds of men:

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2.    The few who learn by observation.
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Donster

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #4 on: January 17, 2019, 02:32:30 pm »
You da other man!  ;D
Thanks 2 U 2 Charlie!

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Donster

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #5 on: January 18, 2019, 02:42:47 pm »
How is it, that with only the tan wire (to gauge) connected, all works fine??
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Fierofool

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #6 on: January 18, 2019, 04:56:49 pm »
It's probably because the car had a Previous Owner.    :(
There are three kinds of men:

1.    The ones that learn by reading.
2.    The few who learn by observation.
3.    The rest of them have to pee on the electric fence and find out for themselves.    Will Rogers

GTRS Fiero

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #7 on: January 18, 2019, 06:05:50 pm »
Because the light and gauge both run off that wire, and the fuel pump runs off the fuel pump relay.  I am curious about the power, though.  The black wire should have to be connected.

GTRS Fiero

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #8 on: January 28, 2019, 08:51:16 pm »
When this thread came up, the February newsletter was well under way, which is why I had something to contribute.  The topics themselves were started months ago.  It was interesting, how the timing worked.

Donster

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #9 on: June 08, 2019, 10:00:34 am »
OK, new (88) OPS has arrived. The old one was making the gauge bounce all over the place - full spectrum.Installed the new one today, no oil light and the gauge goes all the way past 80 to full.
I am having way too many electrical problems with this car!
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Fierofool

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #10 on: June 08, 2019, 10:45:46 am »
Did the sender come from the US or was it from somewhere in Europe? 
There are three kinds of men:

1.    The ones that learn by reading.
2.    The few who learn by observation.
3.    The rest of them have to pee on the electric fence and find out for themselves.    Will Rogers

Donster

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #11 on: June 08, 2019, 11:26:34 am »
Did the sender come from the US or was it from somewhere in Europe? 

RockAuto
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GTRS Fiero

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #12 on: June 08, 2019, 11:33:40 am »
Have you tested with a mechanical gauge?

TopNotch

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #13 on: June 08, 2019, 12:01:58 pm »
80 pounds may be normal for an 88 duke in good conditions. Try running it till it's hot, and see if it drops off a little.
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Raydar

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Re: 85 - 87 vs 88 Oil Pressure Sending Unit
« Reply #14 on: June 08, 2019, 04:49:12 pm »
80 pounds may be normal for an 88 duke in good conditions. Try running it till it's hot, and see if it drops off a little.

My Duke seems to run higher "hot" oil pressure than any of my V6s ever did. 55-60 lbs at idle. At least according to the gauge.
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