Pretty happy to find so much support for LS swaps on TH-cam. I bought a harness that was converted by somebody else (???) but it needs some help on the power supply side. Planning to swing an LQ4, or anLQ9 if I can find one cheap, into my crewcab R30.
You can also out a flat (matching ) metal thing between ALL Pins an white plastic klipps to unloosen ALL at once. So you just need to check for the right ones an pull, no turning over and over again.
I find it waaay easier to do this with the engine on the engine stand......plug the harness into everything on the engine you're keeping, then simply remove the wires that arent plugged in minus your pinks of course. Another advantage to doing it on the engine is it allows you to go ahead and route everything the way you want.
I like that you're doing GM, I'm trying to figure out why my '99 Buick won't crank to start, but have you got a list of the numbers on the ECU plugs? That would make it easier to know what I need to trace.
to run the obd2 port, do you go from the wire from the pcm (58 drk green) to the new fuseblock as on the diagram and pigtail it to the obd2 connector? Im confused
You will need the computer with the harness. It will need the anti theft system removed from it before it will run. I would recommend a tune when the project is done.
so if i wanna run lets say a aftermarket tach i run the wire straight to the new tach will it also be the same with speedometer and oil pressure temp and all that stuff im be running aftermarket gauges
Jonathan Mounz the speed signal is a vss signal. The tac can be ran from the harness. The oil will need to have a different plug and sensor from a 98 model camaro
There are a few after market speedometers that use vss signal then have a button that you push, then move the vehicle 1-4 miles to calibrate. Remember that the more accurate the miles the more accurate the spedo. Just look at their info. That way you don't have know all the tire size, gear ratio, etc to have an accurate speedo. Hope this helps!
and on the pink wires how you know which one needs constant and switched? that's the part that confuses me. mine is gonna be a 5.3 and th400 in a 93 c1500
Lonnie's Garage thank you very much sir. I had a turbo 2000 silverado I built and gotta try to get back to that level. I'm going to clean and tuck all the wires on this. is it fairly simple just time consuming?
liam ralph this is the pinout for the red/blue pcm plugs lt1swap.com/99-02_vortec_pcm.htm ......... This is the pinout for the Blue/Green plugs lt1swap.com/99-02_vortec_pcm.htm
Pretty happy to find so much support for LS swaps on TH-cam. I bought a harness that was converted by somebody else (???) but it needs some help on the power supply side. Planning to swing an LQ4, or anLQ9 if I can find one cheap, into my crewcab R30.
Well detailed video! Best one I’ve seen so far, makes me less anxious tackling on my wires
I Cannot get enough of this is my daily video
Your content is excellent!! This is exactly what I need for my wiring job on my LS swap. Good job Brother.
You can also out a flat (matching ) metal thing between ALL Pins an white plastic klipps to unloosen ALL at once.
So you just need to check for the right ones an pull, no turning over and over again.
I like your box
thanks for posting it helped me get started
I find it waaay easier to do this with the engine on the engine stand......plug the harness into everything on the engine you're keeping, then simply remove the wires that arent plugged in minus your pinks of course. Another advantage to doing it on the engine is it allows you to go ahead and route everything the way you want.
liltroy77 I set everything up in my motor before I unpined everything and before I did my loom.
Hey man I just wanna say people really over think this I swear I done mine in about 3 hours start to finish
I agree
One wire at a time... It's not rocket science
I like that you're doing GM, I'm trying to figure out why my '99 Buick won't crank to start, but have you got a list of the numbers on the ECU plugs? That would make it easier to know what I need to trace.
I wounder what wire gauge is the um the whole harnes including the the sensors and the fuel injectors accessories for this type of a deal.
hey. good work man
Hey how’s it going, for pin 26 & 29 HO2S low signal b1s1 off the blue plug what would I be doing with those pins ?
hello. I was wondering if you can email me that list you have printed for what wire goes to what.
Thank you
great stuff thanx
is it a vortec harness or a regular ls harness thanks bud nice vid very helpful
Jose Iturbide ls harness
to run the obd2 port, do you go from the wire from the pcm (58 drk green) to the new fuseblock as on the diagram and pigtail it to the obd2 connector? Im confused
Nice job. do you have an extra copy of the diag on how to wire the fuse blocks?
Yannick tovar I show how to do that in this series of videos
I use the stock computer? And if I do, do I need to get it reprogrammed?
You will need the computer with the harness. It will need the anti theft system removed from it before it will run. I would recommend a tune when the project is done.
dam good information 👍👍👍
so if i wanna run lets say a aftermarket tach i run the wire straight to the new tach will it also be the same with speedometer and oil pressure temp and all that stuff im be running aftermarket gauges
Jonathan Mounz the speed signal is a vss signal. The tac can be ran from the harness. The oil will need to have a different plug and sensor from a 98 model camaro
There are a few after market speedometers that use vss signal then have a button that you push, then move the vehicle 1-4 miles to calibrate. Remember that the more accurate the miles the more accurate the spedo. Just look at their info. That way you don't have know all the tire size, gear ratio, etc to have an accurate speedo.
Hope this helps!
cheers for that
liam ralph no problem
just wondering if this pin out diagram will also work on ls1
liam ralph what year is your motor? You need to go to lt1swap.com to get your correct pinout.
and on the pink wires how you know which one needs constant and switched? that's the part that confuses me. mine is gonna be a 5.3 and th400 in a 93 c1500
Dustin Kennedy Pink wires are keyed. Orange wires are constant
Lonnie's Garage thank you very much sir. I had a turbo 2000 silverado I built and gotta try to get back to that level. I'm going to clean and tuck all the wires on this. is it fairly simple just time consuming?
the fuse block, mil lamp and ob2 port is what confuses me.
Dustin Kennedy it's not too bad. It just takes time. You can't rush it if u want it right.
late 03 is the year
liam ralph 5.3? Do you have red and blue plugs for the pcm
liam ralph this is the pinout for the red/blue pcm plugs lt1swap.com/99-02_vortec_pcm.htm .........
This is the pinout for the Blue/Green plugs lt1swap.com/99-02_vortec_pcm.htm
if I want to keep my ac do I still take out those pins?
Danny Austin no. U will leave the ac plugs connected to harness
do you happen to have the sheet for the fuse box and relay diagram? I really need that if so or if you could tell me where to get it
Dustin Kennedy look me up on Facebook Lonnie Rice. I have pictures of it in my album
Lonnie's Garage I will. I really appreciate it. you can check out my old build If you like
does this setup still use the 02 sensors
king9968 yes but only the front two that are closest to the heads
Wow
where did you get the information morgan mcanally
I got the pin out on lt1swap.com
thanks man 👍
tony ruiz no problem
is there anyway I can talk you into emailing me the wiring diagram
Do u need to know what wires can be removed and what wires to keep? If so go to www.lt1swap.com
can you rework my harness? or do you know anybody?
finessin 1000 sorry I don't rework them for people.
do you know anybody that can do it ?
finessin 1000 look around the groups on Facebook for ls swapped trucks
lol I cut all the wires the website told me to down and forgot my harness is an 04 and I basically had to restart everything and hated my life
an for a Duramax 2006 lbz
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