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Join Date: Apr 2017
Posts: 29
1969 911e oil pressure and temp sender ?'s

Hello, I'm a newbe to the Forum.
I have a few questions about a 69 911e that a friend just purchased.
The oil Temp gauge is inop.
This is what found or not.
There is an oil pressure sender present on the front of the engine ( closest to firewall). The oil pressure gauge works.
I also found a double pigtail laying on the engine next to it.
From the researching on the web. It looks like it should go to a Oil Temp/Pressure sensor. But I can't find where it would go. This car has had many hands in it.I've included pictures.Any help would be greatly appreciated. Thanks




Old 04-25-2017, 05:30 PM
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I forgot to post a pic of the pigtails.
Old 04-25-2017, 05:32 PM
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ROW '78 911 Targa
 
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Join Date: Jul 2011
Location: Salem, OR
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Green/black wire is for the oil temp. Should be connected to a temp sender below the passenger side of the fan housing below the skinny oil line.
The other disconnected wires with rubber boots are for MFI warm up and shut down solenoids.
Google "rennlist SL35" and print it out.
Green/red wire is oil pressure.
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Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C
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Old 04-25-2017, 09:18 PM
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Hey Timmy2 thanks for your help.
The oil pressure sender has a wire coming from a plug on the firewall that is green with a red trace. Out of the same Plug on the firewall is wires (taped together with the boots). One is Green/black trace (oil temp?) and the other Green/red trace. The same wire looking wire as the one going to the Oil pressure sender. I pull the plug from the firewall checked to see if they went to the same pin. But they don't. The two solenoids that you mentioned have harnesses connected to them.




The two pigtails with the green/red and the green/black will not reach the front right side the engine and are factory untampered. i included pics again. Including two pics. One of went you mentioned before (found on web). the other of a newer 911 the the combo sender. If have to lengthen the Gr/blk (temp wire) I will. But still puzzled about the other Gr/rd wire. I printed the wiring diagram (thx). I apologize for long posting.
Thanks in advance for help.
Old 04-26-2017, 06:02 PM
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ROW '78 911 Targa
 
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Join Date: Jul 2011
Location: Salem, OR
Posts: 10,214
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I can only suggest where the wires are supposed to go.
You need to find the devices on the engine where "many hands" may have placed them or removed them from!
The '69 wiring diagram is very simple with direct wiring connections shown to each device.
Figure out how to trace them from gauge to device and you should be able to get them correct.
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Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C
Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds.
Old 04-26-2017, 08:36 PM
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Ok, Wil do. Thx AfterI figure that out. I have to tackle an extremely rich running condition. Thanks again for your help.

Old 04-27-2017, 05:23 PM
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