GalantVR4.org The Mitsubishi Galant VR-4 Forum
Galant VR-4 Forums » Galant VR-4 » Technical Discussions » O2 sensor harness repair - how to handle braided shielding...
Previous thread Next thread

O2 sensor harness repair - how to handle braided shielding...


moduleunknown
Schooner
777/2000


Galant VR-4 org Post #: 1246615 posted 07/17/19 01:48 PM     Remind Me!  Send Private Message   Edit Post      
Today I find myself wanting to repair/replace the O2 sensor connector on the harness side as the wire insulation is brittle and broken near the connector leaving exposed copper.

I do have a good condition donor 1G dsm harness that I can pull an O2 sensor pigtail from.

My question though - if I do this and start splicing wires together, how do I handle the two wires (grouped together inside a brown sleeve) that are wrapped in braided shielding? Splicing wires is not an issue for me, but I don't know how I should properly handle the braided shielding.

Any tips, suggestions, or a better way to make this repair would be much appreciated. Thanks!



'91 GVR4 777/2000

Posts: 166 | From: Chandler, AZ | Member Since: 10/30/08 | IP: (2600:8800:1c00:3) | Report this post to a Moderator

iceman69510 Galant VR4.org Moderator
Turn Right Racing
855/2000


Galant VR-4 org Post #: 1246617 posted 07/17/19 02:40 PM     Remind Me!  Send Private Message   Edit Post      
Salvage what you can of the shielding and keep it there, but I don't believe missing a portion of it will be too detrimental.

I'm not certain modern cars use the shielding anymore. Perhaps it was a precaution not 100% necessary but believed so at the time?

I did a similar repair in the way I mentioned. I don't recall any negative effects.



91 VR4 855 Nile Black
92 VR4 828 Belize Green-SOLD
91 VR4 115 Nile Black -SOLD

Posts: 10697 | From: Michigan | Member Since: 03/05/01 | IP: (205.144.100.200) | Report this post to a Moderator

bradrs
Member


Galant VR-4 org Post #: 1246618 posted 07/17/19 09:48 PM     Remind Me!  Send Private Message   Edit Post      
If you do try to repair it, make sure you follow the wiring diagram in terms of how the shield is grounded. The shield needs to be grounded to work properly. If I remember right, the shield is tied to 1 of the 2 wire inside, near the ECU. But its been a while since I looked.

There are some places that sell cable with a braided shield. I've never used it personally though, I so I can't speak to the quality.

click

Posts: 128 | From: Alta Loma, CA | Member Since: 02/01/14 | IP: (172.86.186.171) | Report this post to a Moderator

moduleunknown
Schooner
777/2000


Galant VR-4 org Post #: 1246623 posted 07/18/19 01:20 PM     Remind Me!  Send Private Message   Edit Post   
Thanks for the tips.

I ended up de-pinning the o2 connector on the harness side and making repairs near the connector rather than hacking up my harness further down.

I really didn't feel comfortable messing with or hacking the shielding, whether it's all that critical or not.

Later on down the road, perhaps I pull the entire (now) 28 year old harness and freshen it up with an all new shielded run from ECU to engine bay for the o2 signal, same for anything else that needs it, crimping on new pins and using new connectors. That's the dream anyway ...one day.



'91 GVR4 777/2000

Posts: 166 | From: Chandler, AZ | Member Since: 10/30/08 | IP: (2600:8800:1c00:3) | Report this post to a Moderator


Pages: 1
Previous thread Next thread

Extra information
0 registered and 31 anonymous users are browsing this forum.

Galant VR4.org Moderator:  curtis, steve, atc250r, jcgalntvr4-244, cheekychimp, jepherz, Rausch, toybreaker, iceman69510, pot, FlyingEagle 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 308

Rate this thread


News & Events: News | Events
Galant VR-4: Newbies | General VR4 Discussions | Technical Discussions | How To and Info Archive
Marketplace: Parts For Sale | Cars For Sale | Good Guys | Bad Guys
Community: Members' Showcase

Contact Us | Privacy statement GalantVR-4.org

Generated in 0.358 seconds in which 0.337 seconds were spent on a total of 14 queries. Turbo powered.


Hertz's Galant VR-4 Page