Jump to content

Help identifying wires/connectors (During the disassembly of my '02)


MildSeven
 Share

Recommended Posts

Hi guys,

 

I'm currently taking apart my 2002 to prepare it for painting, I'm the 4th owner, 3rd "enthusiast" owner. I've come across a few wires which aren't connected to anything.

 

I'd like to identify them and their use, if useless, I'll go through the harness to remove them completely.

 

Unused connecters/wires

 

Bellow windshield:

3x small connectors

post-46694-0-85372100-1423504450_thumb.j

 

Around brake booster:

2x large connectors, 1x medium, 2x small, 2x single

post-46694-0-37371500-1423504481_thumb.j

 

Next to distributor:

1x small connector

post-46694-0-41482200-1423504942_thumb.j

 

 

thanks a lot guys!

Anthony

Edited by MildSeven
Link to comment
Share on other sites

Most of those wires look like part of the smog wiring harness.  Everything in the blue harness can be removed from the coil to the fuse box (2 wires).  You will need to run a wire back from the fuse box to the + side of the coil.  Lot's of write-ups on the FAQ that covers this procedure for coils with internal and external resistors.

 

Mark92131

Link to comment
Share on other sites

Everything in the blue harness can be removed from the coil to the fuse box (2 wires).

 

I believe this is an oversimplification.

 

That blue housing contains the oil pressure wire, idle shut off solenoid wire, condenser wire(s)... it also depends on whether you are using an inline resistor wire (and a coil which is not blue).  

 

The [unused two wires] in your photo look like the ones that went to the condenser.  I am guessing you had a Pertronix, or something similar and were not using them.  They are nice to leave inline, in case the electronic module fails.  Points can be easily plugged in to get you home.

 

There are some very complete threads to aid in de-smogging.

Link to comment
Share on other sites

That blue housing contains the oil pressure wire, idle shut off solenoid wire, condenser wire(s)... it also depends on whether you are using an inline resistor wire (and a coil which is not blue).  

 

Red coil, it also has a Crane Fireball ignition

 

I'll do some research for de-smogging.

Edited by MildSeven
Link to comment
Share on other sites

...also there are 2 unused connectors behind each headlight.

eg.: passenger side "unused." didn't snap photo of other side.

attachicon.gifIMG_5140.JPG

Square taillight cars came with two additional "switched" power feeds on the radiator support: each one ends with a clear rectangular connector. One is powered only when low beams are on: that one is intended to power fog lights. The other is powered only when high beams are on: that one is intended to power driving lights. I don't recall which feed is on which side of the radiator. You'll have to experiment.

Regards,

Steve

Edited by Conserv
Link to comment
Share on other sites

  • 2 weeks later...

Square taillight cars came with two additional "switched" power feeds on the radiator support: each one ends with a clear rectangular connector. One is powered only when low beams are on: that one is intended to power fog lights. The other is powered only when high beams are on: that one is intended to power driving lights. I don't recall which feed is on which side of the radiator. You'll have to experiment.

Regards,

Steve

 

thanks for the explanation. I also found a similar situation in the truck.

 

driver side (looks like the wire on the right of the connector connects to it... not sure)

post-46694-0-74859000-1424876301_thumb.j

 

passenger side: (same thing, looks like teh wire below the connect connects to it... not sure)

post-46694-0-27667600-1424877199_thumb.j

 

 

ALSO...When I was pulling wires in through the firewall... this one came in unlabelled, I went through my photos and couldn't find it anywhere :( anyone have any ideas?

post-46694-0-09404800-1424877035_thumb.j

Edited by MildSeven
Link to comment
Share on other sites

These colored wiring diagrams are nice to have:  http://www.colorwiringdiagrams.com/bmwcars.htm

(you would want '2002F' for your '76)

 

williamggruff posted a copy in this thread, http://www.bmw2002faq.com/topic/160230-76-wiring-diagram-key/?hl=%2Bwiring+%2Bdiagram#entry1011382 , which can be found here:   https://plus.google.com/photos/104033389162157892781/albums/5428118103269140273/5428117186052531682?authkey=CI7OirTpnKbDPA&pid=5428117186052531682&oid=104033389162157892781

 

I am not sure about the  plug in your photo.  It looks similar in size to the plug going to the wiper motor, but mine is round and has five wires.  You should be able to figure it out with the wiring diagram though.

Edited by '76Mintgrun'02
Link to comment
Share on other sites

These colored wiring diagrams are nice to have:  http://www.colorwiringdiagrams.com/bmwcars.htm

(you would want '2002F' for your '76)

 

williamgruff posted a copy in this thread, http://www.bmw2002faq.com/topic/160230-76-wiring-diagram-key/?hl=%2Bwiring+%2Bdiagram#entry1011382 , which can be found here:   https://plus.google.com/photos/104033389162157892781/albums/5428118103269140273/5428117186052531682?authkey=CI7OirTpnKbDPA&pid=5428117186052531682&oid=104033389162157892781

 

I am not sure about the  plug in your photo.  It looks similar in size to the plug going to the wiper motor, but mine is round and has five wires.  You should be able to figure it out with the wiring diagram though.

 

thanks a lot, dude!

Link to comment
Share on other sites

ALSO...When I was pulling wires in through the firewall... this one came in unlabelled, I went through my photos and couldn't find it anywhere :( anyone have any ideas?

attachicon.gifIMG_5282.JPG

I honestly couldn't tell you what this is except that it has something to do with the speedometer- because I have this plug too. Here's a few photos, maybe they'll help.

Cheers,

Leit

post-47189-1425542856468_thumb.jpg

post-47189-1425542870798_thumb.jpg

post-47189-14255428810987_thumb.jpg

post-47189-14255428933453_thumb.jpg

Sent from my iPhone using Tapatalk

Link to comment
Share on other sites

I honestly couldn't tell you what this is except that it has something to do with the speedometer- because I have this plug too. Here's a few photos, maybe they'll help.

Cheers,

Leit

Sent from my iPhone using Tapatalk

 

 

that entire box can be removed if you get a 1pc speedo cable from an earlier car.  It's a rev counter that turns on the "emissions" light every xx,xxx miles.  Not needed.

 

 

Well the combination of your replies helped me out on this one :)

 

I didn't have the rev counter box, must not have been connected anywhere.

 

Thanks guys!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.
With your permission we and our partners may use precise geolocation data and identification through device scanning. You may click to consent to our and our partners’ processing as described above. Alternatively you may access more detailed information and change your preferences before consenting or to refuse consenting. Please note that some processing of your personal data may not require your consent, but you have a right to object to such processing. Your preferences will apply to this website only. You can change your preferences at any time by returning to this site or visit our privacy policy.