Harness modifications....best way to cut & splice
#1
Teching In
Thread Starter
Join Date: Nov 2012
Location: The Woodlands, Tx
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Harness modifications....best way to cut & splice
I'm doing a LSX conversion on a 72 Corvette. I'm now at the point I want to shorten the wire runs to clean up the harness. Obviously, its down to cutting the wire and removing the excess.
What are the best butt splices to use? I've heard of pins, but I'm not sure if that's better than butt connectors. Obviously I will need to shrink wrap the connectors. I've got the expensive crimping tool, so I'm part way there.
I need suggestions and part numbers to order. Soldering is not an option, I want mechanical crimps.
Thanks
What are the best butt splices to use? I've heard of pins, but I'm not sure if that's better than butt connectors. Obviously I will need to shrink wrap the connectors. I've got the expensive crimping tool, so I'm part way there.
I need suggestions and part numbers to order. Soldering is not an option, I want mechanical crimps.
Thanks
#3
Teching In
iTrader: (3)
Join Date: Sep 2013
Location: Eastern PA
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Have you thought about unpinning the terminals from the plugs, cutting to length, and repinning with new terminal ends? That's usually the route I go with any harness work, much cleaner and quicker than splicing in my opinion.
I think all the engine sensor plugs are Delphi Metri-pack 150s. Usually like 25 cents a piece from places like EFI Connection, etc, and most sell packs of both male and female terminals.
Just a thought
I think all the engine sensor plugs are Delphi Metri-pack 150s. Usually like 25 cents a piece from places like EFI Connection, etc, and most sell packs of both male and female terminals.
Just a thought
#7
TECH Addict
iTrader: (2)
I would assume so. What you're doing with swapping pedals you are way outside any warranty / liability concerns. Not saying it can't or won't work but in my opinion swapping drive by wire pedals is no different or better than modifying the harness going to the pedal itself. The manufacturer would consider everything they provided "a system" and you modified "the system" so any undesirable results and concerns are fully yours. That would be the lawyers I used to work for speaking.
Trending Topics
#8
TECH Enthusiast
iTrader: (1)
Harness splice
Lots have been written about splice vs solder. First, most of the wires are small and will not "fill up" a connector thus leading to faulure. Applying too much solder will cause the wire to become stiff and over a period of time vibration will cause failure. Tuff call on which way to go. Research and practice.
#9
TECH Fanatic
I second the re-terminate. Also recommend EFI-Connection. Good guys, fairly priced and they absolutely have the correct parts. Make sure to get a proper crimper.
Fierofly, I had EFI-Connection supply a new pedal harness with the PCM end unfinished and terminated myself. Made for a very clean install.
Fierofly, I had EFI-Connection supply a new pedal harness with the PCM end unfinished and terminated myself. Made for a very clean install.
#10
TECH Resident
iTrader: (1)
I prefer to depin at the ecm, reroute the harness, then repin at the ecm. When I splice is needed, I use a western union style with solder and heat shrink. You can buy the pins by the 100's at mouser.
I lengthened mine and it has been running fine for over a year. I even added a connector in the middle of them do I wouldn't need to tear apart the console to pull the throttle pedal wires back out (also ran the brake booster sensor wires through the same connector).
I lengthened mine and it has been running fine for over a year. I even added a connector in the middle of them do I wouldn't need to tear apart the console to pull the throttle pedal wires back out (also ran the brake booster sensor wires through the same connector).
#15
TECH Apprentice
iTrader: (1)
besides cutting and repining the connectors this is my #1 option http://www.nspa.com/multilink.html
Ive used them many many times. great success with them.
Ive used them many many times. great success with them.
#16
TECH Fanatic
iTrader: (7)
You can shorten the harness copper wires that go from the PCM to the sensor connector. They are just copper wires. However, the actual sensor wires that are part of the sensor are made of a high nickel content wire and are nearly impossible to get solder to wick onto them. That's why universal 02 sensors have crimp but splice connectors.
I have modified tons of factory harnesses and soldered all my connections without any issues. I prefer the van harnesses as they are almost 12 feet long so you can mount the PCM almost anywhere. Use good quality heat shrink tubing and you will be fine. My YouTube vid shows several harnesses including ls1 and e38 configs including truck and car layouts.
I have modified tons of factory harnesses and soldered all my connections without any issues. I prefer the van harnesses as they are almost 12 feet long so you can mount the PCM almost anywhere. Use good quality heat shrink tubing and you will be fine. My YouTube vid shows several harnesses including ls1 and e38 configs including truck and car layouts.
#19
TECH Enthusiast
Caspers crimp tool w/seals for about $30 can be had at most of the online shops.
http://www.casperselectronics.com/st...oducts_id=1334
Mouser for connectors -any and all..
www.mouser.com
All you need and you will never go back. I just buy lots of male/female pins. If I am splicing wires I cut the ends off and just use the 'crimp' part. When done right you cannot pull the wires apart. I have done the entire car this way converting an entire 4th gen wiring harness - extending, splicing, whatever. No problems and would not do it any other way. If it is good enough for GM it is good enough for me.
http://www.casperselectronics.com/st...oducts_id=1334
Mouser for connectors -any and all..
www.mouser.com
All you need and you will never go back. I just buy lots of male/female pins. If I am splicing wires I cut the ends off and just use the 'crimp' part. When done right you cannot pull the wires apart. I have done the entire car this way converting an entire 4th gen wiring harness - extending, splicing, whatever. No problems and would not do it any other way. If it is good enough for GM it is good enough for me.
#20
TECH Resident
iTrader: (2)
Join Date: Jun 2013
Location: Wichita, KS
Posts: 755
Likes: 0
Received 0 Likes
on
0 Posts
Can anyone point me in the right direction of the correct name of the terminal at Mouser? I'm finding a lot of similar products and I'm not sure the pictures are telling me enough.
I'm looking for the female terminals that replace the pin terminals for the ecu connectors(blue&red)
I'm looking for the female terminals that replace the pin terminals for the ecu connectors(blue&red)