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StuckeyPCS
06-19-2007, 06:37 AM
I am trying to repair the lower wiring harness from my 1990 240sx. I'm in the process of swapping a ka24de into it. I have pretty much figured out all the wiring with the exception of two or three spots.

Could someone help me identify and verify some of the lower harness wiring?
Specifically 4, 7 and 9. Please point out if I have something mislabed.

1: Alternator wiring
2: Oil Pressure Sensor
3: Neutral Switch & Reverse Lamp Switch
4: Green wire and Green wire w/white stripe - I assume this is the 5th gear sensor?
5: Connects to Speed Sensor
6: Connects to Starter Solenoid
7: Plug with cap over it - Red Wire w/black stripe and black wire - I don't know what it should go to if anything.
8: I know these plugs connect to the engine/body harness.
9: Brown wire - I do not know what it connects to.

http://upload.spankdu.com/files/lower harness.JPG


I'm starting to think the brown wire may go to the power steering pressure sensor (since the car had a ka24e in it originally) however I noticed my ka24de wiring harness has that plug on it, so my next thought was that it has something to do with the air conditioner maybe? I'm unsure.

Thanks for any help!
projectRDM
06-19-2007, 06:44 AM
Brown wire is PS pressure switch, not needed.

Green and green/white are the reverse switch, green/orange and black are neutral, yellow/blue and black are 5th gear position switch.

I can't recall what the red/black is, I'm drawing a blank.
StuckeyPCS
06-19-2007, 12:26 PM
Brown wire is PS pressure switch, not needed.

Green and green/white are the reverse switch, green/orange and black are neutral, yellow/blue and black are 5th gear position switch.

I can't recall what the red/black is, I'm drawing a blank.


Freaking awesome! Thanks alot! :bigok:
2plus4plus0eq6
07-14-2007, 08:21 PM
Excuse me. Could you please tell me the wire colors of the Speed sensor connector? #5

is it 1 wire or 2 wires. Hard to tell from the picture.

Thanks
2plus4plus0eq6
07-16-2007, 07:31 PM
bump. Anyone?
projectRDM
07-16-2007, 08:35 PM
Excuse me. Could you please tell me the wire colors of the Speed sensor connector? #5

is it 1 wire or 2 wires. Hard to tell from the picture.

Thanks

2 wires. It's pretty obvious when you look at the VSS.
2plus4plus0eq6
07-17-2007, 12:18 PM
Well its not obvious to me. For some reason I don't have 2 wires of the same color on my KA lower harness. They disappeared when I did my swap. These 2 wires must run all the way through the harness to either 1 of the 4 plugs on #8. hmm I will have to do some researching. Thanks
2plus4plus0eq6
07-17-2007, 01:05 PM
OK. I just found my connector for my VSS. It was tucked away in the corner of my engine bay. I can't believe I wasn't able to find it for this long. Thanks for your help