Anyone know what this connector is for?

ThermalShark · May 23rd, 2018, 14:27

As I was changing out my temperature sensor on the engine I noticed a plug that was not connected to anything and didn't seem to have anything close by to connect it to so I got curious as to what it might be for.
https://i.imgur.com/LYgkjtX.jpg

And I know... My engine bay needs some cleaning

jonnyf90 · May 23rd, 2018, 15:19

Quote:

Originally Posted by ThermalShark

As I was changing out my temperature sensor on the engine I noticed a plug that was not connected to anything and didn't seem to have anything close by to connect it to so I got curious as to what it might be for.
https://i.imgur.com/LYgkjtX.jpg

And I know... My engine bay needs some cleaning

Pre-wiring for cruise control maybe?
Thought the same when I had my 940

Always laughed at the Swedish term for CC "Konstantfart"

Cheers

ThermalShark · May 23rd, 2018, 15:26

Quote:

Originally Posted by jonnyf90

Pre-wiring for cruise control maybe?
Thought the same when I had my 940

Always laughed at the Swedish term for CC "Konstantfart"

Cheers

I'd be suprised if it's prewired for cruise as my 940 is from 91, but if it truly is that I'd be happy

Paul Wildsmith · May 23rd, 2018, 17:31

test point I'd expect or poss remote engine start

bob12 · May 23rd, 2018, 17:36

I got one of those on my 1990 LH 2.4 745 .... I don't worry about it. It just danglers there!!

However, I am sure if I looked at a wiring schematic I could work it out what it was.

ThermalShark · May 23rd, 2018, 19:27

Quote:

Originally Posted by bob12

I got one of those on my 1990 LH 2.4 745 .... I don't worry about it. It just danglers there!!

However, I am sure if I looked at a wiring schematic I could work it out what it was.

I'm not worried about it, more just curious what it might be for.

Laird Scooby · May 24th, 2018, 08:21

Quote:

Originally Posted by ThermalShark

As I was changing out my temperature sensor on the engine I noticed a plug that was not connected to anything and didn't seem to have anything close by to connect it to so I got curious as to what it might be for.

It would be helpful if we knew what colour it is? Looks like it might be green/violet or possibly violet/green but difficult to be certain.

bob12 · May 24th, 2018, 11:10

Quote:

Originally Posted by Laird Scooby

It would be helpful if we knew what colour it is? Looks like it might be green/violet or possibly violet/green but difficult to be certain.

Green with a red trace. It's held on to the engine with a small metal clip to hold it downwards (that's on the 745 breaker as the proper car is currently at the doctors) - Bob

Laird Scooby · May 24th, 2018, 11:51

After going through several wiring diagrams, i found a number of possibilities.

One is the feed for the cold start injector (not used on LH-Jetronic), second is ambient air temperature sensor, third is the feed for the electromagnetic air-con clutch - there are probably more but after half an hour going through three different diagrams plus one for carburettor cars (might have been the temp sensor for non-injection) i couldn't find any other references to it.

Might have missed something, eyes got a bit glaxzed after staring at a screen full of schematics!

gpl1968 · May 24th, 2018, 12:04

It's certainly in the right place for the air-con clutch trigger wire. If the car doesn't have air-con, that may be your answer.

May 23rd, 2018, 14:27	#1
ThermalShark Junior Member Last Online: Oct 9th, 2023 15:45 Join Date: Aug 2017 Location: N/A	Anyone know what this connector is for? As I was changing out my temperature sensor on the engine I noticed a plug that was not connected to anything and didn't seem to have anything close by to connect it to so I got curious as to what it might be for. https://i.imgur.com/LYgkjtX.jpg And I know... My engine bay needs some cleaning

May 23rd, 2018, 17:31	#4
Paul Wildsmith Register Keeper Last Online: Yesterday 22:27 Join Date: Dec 2001 Location: Bristol	test point I'd expect or poss remote engine start __________________ Paul VOC 90's SPARK

May 23rd, 2018, 17:36	#5
bob12 bob12 Last Online: Today 12:17 Join Date: Aug 2006 Location: Woking	I got one of those on my 1990 LH 2.4 745 .... I don't worry about it. It just danglers there!! However, I am sure if I looked at a wiring schematic I could work it out what it was. Last edited by bob12; May 23rd, 2018 at 18:11.

May 24th, 2018, 11:51	#9
Laird Scooby Premier Member Last Online: Today 12:42 Join Date: May 2012 Location: Lakenheath	After going through several wiring diagrams, i found a number of possibilities. One is the feed for the cold start injector (not used on LH-Jetronic), second is ambient air temperature sensor, third is the feed for the electromagnetic air-con clutch - there are probably more but after half an hour going through three different diagrams plus one for carburettor cars (might have been the temp sensor for non-injection) i couldn't find any other references to it. Might have missed something, eyes got a bit glaxzed after staring at a screen full of schematics! __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

May 24th, 2018, 12:04	#10
gpl1968 VOC Member Last Online: Apr 14th, 2024 16:45 Join Date: Jun 2007 Location: Wirral View Photos By: gpl1968	It's certainly in the right place for the air-con clutch trigger wire. If the car doesn't have air-con, that may be your answer. __________________ Gavin 1997 945 CD (B230FK) [RIP: 1991 945 Turbo (B230FT) 1992 945 SE turbo (B200FT)]

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