Wire Diagram for 01' 5.3 Vortec engine swap
 

Hello, Just asking if anyone Has ever built/reworked there own engine wire harness for the LS 5.3 vortec? Id like to try this myself, I have the stock harness and ECM. I will be using a After market chassis harness. The engine is in my 89' S-10 blazer. Current performance might be the one to do this for me, but I would rather save the money and do this at home.

I will still need the ECM burned and programed. If anyone has a over view diagram that shows the color of the needed wires for the engine functions and controls. I can take from there! I have done some marine wiring in the past, and feel I can tackle this!

Any help with this would be great!

Thank you guys! :new:


Justin Kansas
Attachment 518247

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Blue connector.

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Red connector

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Data Link Connector

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Thank you very Much!!! Exactly what I was NEEDING!!!


Next Question.

What are the wires not needed?

You guys rock!!:metal:

Justin

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

If you look through the link I provided he actually has a page showing what wires need to be fed with a fuse/relay, which are not needed to run with pictures and everything. Spend some time clicking all his various links

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

START HERE


99-02 HARNESS INFO


03-07 HARNESS INFO

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Thanks! Just what I needed. Think I have all the info I need!!! Again Thank you!! I'll let ya know how it turns out!!

Justin

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Started On the harness. Have everything except the relay and fuse box finished. Im gonna cheat and buy the relay box from Current Performance. Help speed things up! Thanks again for the info guys, started out good and wasn't as serious as I thought. Lots of reading and testing with the volt meter. Should have it done this week.

I forgot to tell you what my harness looked like when I bought this engine. The Jackass at the pick and pull cut the under hood relay and fuse pin connector under the hood. So no reference to go at, just had to beep test all the pink wires and label the injectors! LOL! I might just start doing harnesses after this little adventure, that's if things work!!:lol:

Before: :devil:
Attachment 521005

After: :waah:
Attachment 521006

Justin

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Hey Justin,

Would you consider doing a write-up or FAQ or was the info from LT1swaps sufficient?

If I still feel retarded then maybe I am and I could be your 1st customer?

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

LOL! Im still getting mine reloomed. When I have everything done and tested, Hell ya for sure start a thread!

Just changed the injectors to LS1 style, and traced all the grounds and other uneeded wires. The LT1 site helped alot. Pictures helped, but the amp meter was the saving grace. Id be glad to help you when Im finished.

The hard part is next, the lay out for the engine. The truck intake is taller, so the ls1 is short. Just got damm cold here this week. I don't have a heated shop. Maybe if my relay box shows up, Ill have it hooked up on the block and then shorten or lenghten my wires. The Vortec harness was a Rats nest from hell! But fo the most part, Im heading in the right direction!

Keep ya posted!

Justin

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

THANKS FOR ASKING THE QUESTIONS SO i DIDNT HAVE TO....LET US KNOW HOW IT GOES

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Glad its working out for you

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

i DO NEED 2008 5.3 (TRUCK) DIAGRAMS THOUGH

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

TRY HERE


HERE


AND HERE

You should be able to find help at one of theose locations!!

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

THANKS. i AM HOPING TO GET THIS DONE BY THE FIRST OF THE YEAR.

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Did you say that you did ecm flashing... Or do you have the software

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Sorry I do not. There are many that do from about$150-300+ and some lock their tune so nobody but them can change it.

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

yeah thats why i want the software so i can do what I need to do and change what I man need to change

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

The software from what I have seen is pretty expensive $500+ and there is a learning curve for using it. I am going in so many directions with my swap I am paying someone to do my harness and tune. If I do another I will do my own harness. I will probably always have someone else do the tune unless I find a great deal on the software.

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Thats true. I have tuned stanalone units ie haltech. motec. but never realy messed with stock ecu's. I would like to play with the software a bit to see what can be done.

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

I have it Finished! Alot of work! Im not going to do this for living for sure! Too much to deal with, and would hate to have something happen to make some mad! Just gonna do this for myself and give the little info to anyone I can!

Attachment 529987

Attachment 529988


Justin

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

nice job! Keep us updated

Re: Wire Diagram for 01' 5.3 Vortec engine swap
 

Thanks for the help Thealien. Im hooking things up this weekend. I bought a new chassis harness and scraped the stock wiring. I should have things wrapped up soon, that's if the weather holds! More parts came today! I just need to get after it!LOL!

Justin

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Attachment 546088

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Attachment 546090