L83 2014-2018 Pinouts
Thread Starter
Teching In
Joined: Apr 2019
Posts: 12
Likes: 4
From: Hawthorne CA
L83 2014-2018 Pinouts I'm currently working on making a easy to read and follow guide and pin out pdf for Gen V motors.
I struggled to get all the info i need it ( was fairly simple after i got pointed in the right direction) and wanted to give back to the forum.
In the next few days i will be completing the mini write up and whats needed to use the Gen V harness from any year L83. To make your own stand alone harness and get your build started.
Only reason i am posting ahead of time is to see if there is any reason to the moderators or other companies on why on shouldn't post it.
I struggled to get all the info i need it ( was fairly simple after i got pointed in the right direction) and wanted to give back to the forum.
In the next few days i will be completing the mini write up and whats needed to use the Gen V harness from any year L83. To make your own stand alone harness and get your build started.
Only reason i am posting ahead of time is to see if there is any reason to the moderators or other companies on why on shouldn't post it.
Thread Starter
Teching In
Joined: Apr 2019
Posts: 12
Likes: 4
From: Hawthorne CA
This are the pin outs for 2014 & 2018.
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.
TECH Fanatic
Joined: May 2010
Posts: 1,081
Likes: 8
From: Atlanta, Ga
I'm about to dive into a 2016 LT1 harness from a dry sump Z-51. I will let you know if it is consistent with the L83.
I am also adding the LT4 supercharger, so I have learned that some things are different between the LT1 and LT4.
I also see some "extra" bulkhead style connectors on the harness. I will post some pictures.
Maybe someone can ID them.
I am also adding the LT4 supercharger, so I have learned that some things are different between the LT1 and LT4.
I also see some "extra" bulkhead style connectors on the harness. I will post some pictures.
Maybe someone can ID them.
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Teching In
Joined: Dec 2019
Posts: 5
Likes: 4
Here is my messy doc of what I used and deleted. I haven't tried it yet, so no guarantees. I believe this is a 2017 L83, I'm using a T56, so I deleted transmission related wires. I went through the body plugs and fuse box connector as well and listed what my fuse and relay box looks like.
EDIT: Updated O2 sensor pins, I had them mixed up, you want bank 1 sensor 1 and bank 2 sensor 1. Everything else is working fine, car is running without issue.
EDIT: Updated O2 sensor pins, I had them mixed up, you want bank 1 sensor 1 and bank 2 sensor 1. Everything else is working fine, car is running without issue.
Last edited by Fridge Gnome; Jun 20, 2020 at 06:16 PM.
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Teching In
Joined: Jan 2020
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2017 l83 pinouts for blue ecm plug, grey ecm plug, black ecm plug [QUOTE=Tacuache92;20106071]This are the pin outs for 2014 & 2018.
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE
Teching In
Joined: Jan 2020
Posts: 9
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2017 l83 pinouts for blue ecm plug, grey ecm plug, black ecm plug [QUOTE=Tacuache92;20106071]This are the pin outs for 2014 & 2018.
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE
Teching In
Joined: Jan 2020
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2017 l83 e02 pinout what wires i dont need??? [QUOTE=cedric sanders;20201215][QUOTE=Tacuache92;20106071]This are the pin outs for 2014 & 2018.
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
im doing a 1988 s10 blazer 2wd 2017 l83 swap with a th350 trans what wires i need to cut to the truck up and running cedricsanders42@gmail.com or 334 553 5163
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
im doing a 1988 s10 blazer 2wd 2017 l83 swap with a th350 trans what wires i need to cut to the truck up and running cedricsanders42@gmail.com or 334 553 5163
Thread Starter
Teching In
Joined: Apr 2019
Posts: 12
Likes: 4
From: Hawthorne CA
You need to remove the vats off the pcm first. i ran my fuel pump off ignition. no modules just a fuel lab regulator set at 75psi
Teching In
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2017 l83 pinouts for blue ecm plug, grey ecm plug, black ecm plug 2017 l83 gen v with th350 trans what wires on the x1 blue plug that i need to cut and keep ?? the x1 black plug cut and keep?? the x1 gray plug cut and keep to get the engine to run ??
Teching In
Joined: Jan 2020
Posts: 9
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help I'm currently working on making a easy to read and follow guide and pin out pdf for Gen V motors.
I struggled to get all the info i need it ( was fairly simple after i got pointed in the right direction) and wanted to give back to the forum.
In the next few days i will be completing the mini write up and whats needed to use the Gen V harness from any year L83. To make your own stand alone harness and get your build started.
Only reason i am posting ahead of time is to see if there is any reason to the moderators or other companies on why on shouldn't post it.
I struggled to get all the info i need it ( was fairly simple after i got pointed in the right direction) and wanted to give back to the forum.
In the next few days i will be completing the mini write up and whats needed to use the Gen V harness from any year L83. To make your own stand alone harness and get your build started.
Only reason i am posting ahead of time is to see if there is any reason to the moderators or other companies on why on shouldn't post it.
Teching In
Joined: Jan 2020
Posts: 9
Likes: 0
2016 l83 harness pinout for DIY standalone harness [QUOTE=cedric sanders;20201229] stand
This are the pin outs for 2014 & 2018.
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE
Teching In
Joined: Jan 2020
Posts: 9
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what wires i cut that i dont need for my l83 harness [QUOTE=cedric sanders;20201215] can you send me a copy of what wires i need to cut from the l83 harness that i dont need
This are the pin outs for 2014 & 2018.
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE
Have't had time to do a full write up. included are the pin outs from the pcm to the body harness & ctsv pedal which alot of use use for our swaps.
To get the truck up and running you need to cut all the wires that would go to the fuse box, and make a fuse box out of all the violet/ blue wires, they go on with ignition. Then there are two red with green wires which are constant power to pcm. lastly there is a violet and green wire which also goes to key powered to pcm.
Any questions hit me up or post here. Im learning as i go but have done a ton of research on this particular engine.[/QUOTE