EBAY / CHINA LS STANDALONE HARNESS - TIPS, TRICKS, & TROUBLESHOOTING 

Oh man i was stressing wiring this harness in after all the plug and play stuff was done. You made me feel much better and confident thank you i have the same harness.nice tip with the fuel pump and wire to starter

Thanks I’ve been looking all over for a video like this, I’m definitely subscribing your great at explaining stuff 👍🏾👍🏾👍🏾👍🏾

Thank you brother for the info I was going crazy

You made me feel so good on running my fuel pump wire was so confused on what to do subscribed!!!!!!!

Awesome video. Just received my eBay harness for my 72 Chevy c10 swap. Thank you so much we have the same harness

Keep up with your vids ! I learned a lot and you got great content !

Thank you so much it helped me out a lot im a starter in this and you cleared a lot in your vidieo. God bless

Dude that PDF was gold! Thank you.

Video helped out tremendously on my k20 swap thank you!

Great vid man this helped so much!

Thank you for posting and the links!!!

Wow! This was great! Thank you

Thanks so much this is a blessing

Nice you explains very good thank you

The reason they did not use the same power wire to feed the ignition relay and fuel pump is because you should have a fused power source for the fuel pump

Always great, need to know info. Thanks

Fire video my boy 10/10

Appreciate it great video

Excellent content Sir

Hey brother the ebay Ls swap wire harness is good

Great information here thanks. I’m trying to tie in the park neutral safety switch that came on the transmission. I managed to find wiring diagrams however there is one connection I’m not sure about. It’s the park/neutral position. One of the wires goes to the starter relay. The other goes to the power train interface module (PIM). The PIM in turn has a wire to pin 58 on the C1 connector of the ECU. Have you had any experience with this. What exactly is the PIM as I don’t have it. Do I need it to make the park neutral safety switch work?

Well done video!

So I can use both leads for the +12v consent and +12v key from the starter ? How many amps will the 12 v key use?

Good job 👍🏻 👍🏻👍🏻👍🏻👍🏻

Thanks man!!!

I have a quick question im installing a 5.3 lm7 and the the donor 4l60 transmission came out of a 06 chevy tahoe but what i notice is that it was a neutral safety switch and my hardness doesn’t have a connection for it what should i do there’s nothing in RU-vid that talks about it

Real quick note - On the fuel pump relay, you mentioned that the ECU probably sends about 5v to the relay on the green wire so that the relay will send the full 12v out to the fuel pump on the red wire. The idea here is correct but instead of different volts it is amps that are different. The relay's electro-magnet draws a small amp load of current to operate so the green 12v wire is a smaller gauge since it is only handling the small amp load; however, the fuel pump pulls a much larger amp load of 12v power when it is running. Because of this, the 12v red feed wire to the pump must be a larger gauge to handle the larger 12v amp load. Being able to control devices that draw a lot of current through the use of small gauge switch wires is one of the main uses for relays.

I have a 1997 GMC Sierra I did a ls swap on. I’m having trouble figuring out where to the small wire from the starter would go? & also where can I find the distributor wire for ignition power?

Thx u for the good info,? I c the green data wire to the ecm ,?But where is the white wire going coming out of the fuse block next to it ,is that the tach wire,where does it run and what is it 's function

Hey man I been wanting to swap my 2016 Silverado to the gen 4 5.3 it’s a 4.3 v6 so I was wondering what all I needed to change I’ve learning a lot from you but im just unsure what all I need to do

I have a question about the two starter wires? On e I put them on my starter with the battery wire...do I have to install my cars old starter wires also???

Which wire is the vss+ signal wire. Underdash.

My O 2 sensors do not match the harness. Will the engine start without the O2 sensors plugged in. Really enjoyed your video.

For the under dash wire harness could I tap in to my stock harness or whatever it goes to? Or is there a module/box I need to get to be able to connect them? Also how do I get power to my ignition switch? Is it the red loose wire that came close to the relays? I have seen a couple of videos but found yours more informative. Thank you

where does the wire for the distributor come from? Awesome video, man!

Hi amigo thanks for your video i have a question i order the same harness but the one i get the the MAF is diferent my donor vehicule the MAF sensor is 5 pins and one i get is just 3 pin and a extra separate conector with 2 pins how you make yours to work.... thank you

I mention you in my last video. Hope that’s ok. :)

So 2 ring wires and positive battery post wires all go on one side of the starter and the small red signal wire goes to the crank position on the back of the key switch and that’s it for wiring the starter?

My Guy!!

So I built my first LS, I'm looking to put it in my 81 firebird but first I want to start it on a stand. How do I get the starter to start if both of those wires go on the same post

That 12v wire you had to relocate to the distributor. is that ecu wire supposed to be consent? Could you hook it direct to the battery with those other ecu 12 v wires, that you had all them originally connected to gether?

Thanks for the great video Jovani, I have the China CNCH-3250 harness for my LQ4 swap and it works 100%, but there's something that I can't wrap my head around. Everyone mentions connecting both positive lugs onto the + starter terminal. My harness came with a large and small ring lug in the lead that goes to the starter, so I connected the large ring to the starter positive (batt+) and the smaller ring to starter solenoid trigger. That small ring is wired directly to the starter relay in the CNCH fusebox that came with the harness (I traced it back), so it makes sense that you are supposed to connect your old starter wire from your key to that relay, and then that triggers the starter, or am I missing something here?

Where can I contact you I am having issues figuring out the fuel pump relay stuff

dam Jovani i like to see that early model chevy truck come to life is that a 1950

Do you know if the 4l80 and 4l60 connectors are the same? And is there anything I would have to do in the ecu when switch to 4l80 with an ecu that came on a 4l60 truck?

What can u say about the quality on the actual wires of the harness?

MY O2 sensors aren't reading! And the wire colors do not match what the instructions say. I have no tan wire. Purple pink black white w/red tracer. And I ordered the O2 sensors the instruction manual says to use. Anyone else had this issue? Also there is 12v on my tach wire!!!

gracias por los tips, aca en mexico estamos jodidos de informacion

Hi In the "Under dash wires bundled together" I have a pink wire but there is no mention of what to do with it, normally pink is igntion.

I need to know what your egi plug look like and what you tide it in to

Can you provide info on the 6.0 58x dbw 4l80e ebay harness... instructions. Etc...

I did the same thing you did splice the wire and make a jumper ! however my fuel pump relay clicks on then 5 seconds later it clicks off? is it supposed to do that ? I'm doing a 1994 chevy c1500 OBS with a 5.3 and a stand alone ebay harness... that's where I'm at so far

Can post a link to which harness you ordered? I have a 5.3 drive by wire with a 4l60 but not sure which harness to order.

lo estoy instalando en una 55 ford panel

I bought a harness the same from ebay But did your harness come a wire plug for the oil pressure switch ?

Had any issues with the MAF plug? Mine was not wired correctly. I rewired and MAF is showing voltage but the IAT is not registering, verified in VCM scanner with HP Tuners. This is on a 5 pin MAF. Still a bargain for this harness

I just bought one off eBay for my 06 Impala SS I hope this is compatible

Just go my harness today, they sent me the same harness as you or very close. I have the wrong injector plug and the o2 sensor connector is wrong and the maf connector is wrong. Did your harness not have a oil pressure sensor?

When i turn on my lights fuel pump primes same harness as yours, didnt do this before i had the original harness

sir where does the distributor wire go to? To the battery starter or where I hope you see this I need your help thanks

Is there a way to trick the vats into thinking it’s getting the right voltage to the ecu without having to get the computer flashed?

Can anyone tell me what all the under dash wiring group of wires are found tach signal but don't know what all the others do

Mire tu video y me atreví a hacerle un swap 5.3 a mi c10 85 todo esta conectado en orden pero no enciende el motor pensamos que la ecm no quedo flasheada o algún cable falte por conectar

What does the ignition wire do does that get connected to distributor

So I’m ls swapping a 1935 hudson it’s a shell the only wires in it are the eBay ls harness. I’m trying to wire it to start I have a good battery and I’m sure of that but when I crank it drops from 12 to bellow 9. the way I have it wired is the red wire to the relay is wired straight to the battery and I have no spark I am at a loss. I’ve checked grounds 100 times cleaned everything.

What injector adapters did you use

Do you have a blueprint on the direct wiring for the fuse block because I have a 1977 Chevy impala and I’m doing my first swap

So I purchased one of these harnesses myself, all grounds are good, connections etc, it seems like the passenger side is only running, the header gets hot but driver side doesn’t, and it’s letting out an extreme backfire through the driver side. Did a compression test, all cylinders were in range, I’m getting fuel and fire but it’s just so strange.

What about the oil pressure sensor? Mine doesn't have a plug for it?

Question??? What about o2 sensors....? I bought new o2 sensors and it throwing "no o2 sensors activity".. is that short in eBay harness or something else? ..any info is helping....thxs

Okay so my Dads 5.3 in 1994 Chevy is almost done its starts and runs has a new 4l60e without neutral safe switch because of the B and M shifter and doesn't really go forward to well in drive or any gear??? any Ideas ?

I have a similar engine ls3, I did the electrics as you have in the video. We programmed the computer and turned off the "vats system". Unfortunately, the engine did not start. High voltage comes to the spark plugs, but no impulse comes to the injectors. Maybe you can advise me what could be the reason. Diagnostics shows me the error P0315. The sensor is working. Thank you very much in advance

Do you know what the fuse controls wha

What wires go to the battery?

would you recommend it?

i got same harness installed but my starter is not engaging

My eBay harness didn’t come with the oil pressure sensor or the evap sensor, what can I do?

What’s your website and what’s your location, looking to do a swap

My transmission isn’t shifting into 3 and 4, is there any wires in the bundle of wires that run to trans that need power?

any help on obd port not reading?

Bro my ebay harness came with a weird injector plug what do I need?

Under dash wiring pinout?

Hey guys I’m having an issue where the injectors are getting 6v to the injectors has anyone had this issue

Min 14:20 what plug was it??