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03-07 Gen 3 LS 24X Drive by Wire Standalone Harness | 4L60E-75/4L80E | PSI

HAR-G3WA

APPLICATION: 2003, 2004, 2005,2006, 2007 Chevrolet, GMC, Cadillac & Hummer truck engines (DRIVE BY WIRE ONLY) w/ 4L60E-75/4L80E Transmissions using GREEN/BLUE 242 PCM.

PARTS INCLUDED: Complete engine and transmission Harness, Instruction Manual


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(42)
Ships Today When Ordered Before 2pm CST
$624.00
CHOOSE INJECTOR TYPE
TRANSMISSION TYPE
ALTERNATOR TYPE
INTAKE MANIFOLD / MAP SENSOR TYPE (WIRING ONLY)
CRUISE CONTROL
ADD E85 FLEX FUEL SIGNAL WIRE
ADD 4WD SIGNAL WIRE (ADJUSTS 4 LOW SHIFT POINTS)
SELECT LOOM TYPE
ADD / CHOOSE A PEDAL TYPE
ADD O2 SENSORS (SAVE $5)
ADD TCC/BRAKE SWITCH KIT
LS GAUGE INSTALL KIT (LS TO 1/8NPT ADAPTERS)
ENGINE TO CHASSIS GROUND STRAP KIT (RECOMMENDED)
ADD FUSE BLOCK MOUNTING BRACKET
ADD LS3 4 BOLT THROTTLE BODY
QUANTITY

03-07 Gen 3 LS 24X Drive by Wire Standalone Harness | 4L60E-75/4L80E | PSI

APPLICATION: 2003, 2004, 2005,2006, 2007 Chevrolet, GMC, Cadillac & Hummer truck engines (DRIVE BY WIRE ONLY) w/ 4L60E-75/4L80E Transmissions using GREEN/BLUE 242 PCM.

PARTS INCLUDED: Complete engine and transmission Harness, Instruction Manual

ADDITIONAL ITEMS REQUIRED: GREEN/BLUE 242 PCM

CONNECTIONS FOR:
  • Fuse/Relay Box
  • Fuel Pump Control (Relay included)
  • Fan controls (Relays and fuse available separately KIT-1010)
  • Check Engine Light, Speedo output, Tachometer, OBD2 Port
  • IAC and TPS on DBC setups
  • MAF Sensor
  • MAP Sensor
  • Engine Coolant Temp Sensor
  • Alternator Control
  • (2) Upstream Oxygen Sensors
  • Crankshaft Position
  • Camshaft Position
  • Fuel Injectors
  • Coil Packs
  • Automatic or Manual Transmission control
  • Knock Sensors
Connections from the Harness You Will Need to Hookup:
  • Fuel Pump (Required)
  • Switched Ignition Power (Required)
  • Malfunction Indicator (Check Engine, MIL, CEL, ETC.)
  • Speedometer
  • Tachometer
  • Fan 1 Relay Control (Low Speed or Single Control)
  • Fan 2 Relay Control (High Speed or Second Fan Control)
  • Fan Relays available separately KIT-1010


NOTES: These harnesses are completely plug and play with four wire hookup (switched power, constant power and ground connections required) for engine and transmission operation. Harnesses are designed for retrofitting '03-'07 Vortec engines (4.8, 5.3, 6.0, 5.7-Liter) and 4L60E-75/4L80E automatic transmissions into older muscle cars and street rods or newer non-emissions controlled vehicles. Harness allows use of the factory Vortec intake manifold, Multec Injectors with flex-fuel Injectors (EV6) and EV1 injectors optional. Harnesses are designed with a sliding grommet seal and roughly 4.5 feet of length from the rear of the cylinder head, and are designed to have the PCM be placed under the dash in the glove compartment area. A sliding grommet seal allows for professional, leak proof installation.

Harnesses are professionally constructed from Brand New GM Delphi Connectors and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications. All Harnesses are 100% Quality Inspected prior to shipping. All Harnesses require PCM VATs removal, available through PSI. Please contact PSI for more information.

Have questions, on a time crunch, or just need this quick?

Give us a call: 732-276-8589
Email: CustomerService@PSIConversion.com

  • Reviews

    Do you have any feedback about our product?

    Write a Review
    • Exceptional product
      Easy and straightforward 
      Maz
    • Great product
      Great product have to pay a little more for piece of mind but that's fine with me used on many swaps fires up first try
      Digrig builder
    • 5.3L LS 4l60E DBW
      Im definitely far from being great with cars. Im more of a DIY basic tools kinda guy but I do have a passion for them. This is my second LS swap. Must say this was the easiest LS swap ive done by a long shot. I have a 86 c10.  The instructions are straightforward. I did use a few YouTube videos for instructions and how-to. 
      Jesus Reviews
    • 57 Pickup LS Swap
      I have not fired the engine yet so can't really speak for performance or durability. Its a challenge under the dash for all to fit with Vintage Air and Custom Autosound radio, but I did it
      Dandaman
    • Very clean harness, easy install
      All parts are top quality and the wrap certainly is worth the extra $ ! after install first started with one turn of ignition!!
      Curtis J
    • Wiring harness.
      Great product and works great! Very easy to install. Awesome customer service as well.
      Handy Hoop
    • Wiring harness ECU and C10 Pedal
      Much cleaner and easier to use than cutting down the OEM harness not to mention so Sharpe and clean !
      Great folks at PSI and will be ordering my Dakota Digital dash today for them!
      Curtis J
    • 2004 5.3 swap
      Seams to be a quality harness so far. In the middle of the install. So far so good. Will update the review once it’s finished 
      Marc
    • Great quality
      All the plugs were where they are supposed to be and oem quality. My only negative is that other harnesses I've bought have a long and short version. I had so much harnesses I couldn't fit it under the dash. I had to mount the ecm in the center console. So a short version would have been better for me. Very nice harnesses and I bought the gas pedal for my swap vehicle.
      Travis
    • K10 ls swap
      This harness was used on a 1986 k10 LS swap. The harness is made with quality products. I opted to get the bare harness without loom so I could sort and route the wires the way I wanted. It came with loom and 2 rolls of quality tape. The only compliant that I have is the coolant sending unit connector. Most people who swap these trucks use a 3 pin coolant sensor so they can send signal to the computer and to the factory gauges. I understand why it came with the stock 2 pin. Overall i'm happy with the product.
      WattsFab
    • Gene Rominger
      Haven’t finished this one yet, but the other 3 I used your harness on worked perfectly. Thanks for making a good product.
      Gene Rominger
    • Ls harness
      Nice harness good quality
      Cam
    • I use PSI harness only
      I use PSI harness on all my LS Swaps, I have tried Current Performance on a few .they have got me on 2 harnesses and did not offer to fix issues. The transmission was pinned wrong 2 times. . Holley Terminator X Max Harnes stunk .As much as my customer PD for it . They had NO INFO. on the alternator wire . Like it didn't matter. I have a short video on it on YouTube under Mudd Dawg Customs (Holley Terminator X Max Harnes)Do Not Buy!!!!!
      Mudd Dawg Customs
    • Another great job!
      Great place to do business with. Top of the line product that performs as it should. Always use PSI!
      Tim
    • Ls swap harness
      Great product and instruction verygood
      K burt
    • Superior quality wiring!
      An excellent sales service!  They make you a  tailor-made wiring for your application with superior quality materials.. I am extremely proud to have high-end products that will ensure a reliability in  long term use.  I recommend it to everyone ! 
      BOB Junior
    • Solved problem instantly
      Just what I needed 
      803Bowtieguy
    • Nice harness
      I have done a mock up using this harness and disassemble for paint. Have not run engine, harness is well made with quality materials.
      Ramey Racing
    • Best hardness ever
      After going for a Chinese made one that wasn’t working right decided to go with psi hardness made in the USA, wire it up and fire up with out any troubleshooting my c10 running smooth. Just order a second one for another project
      Mr brown
    • Asp Unlimited
      We have used PSI several times for our clients and we love their product and their support. 
      ASP
    • 67 C10 Swap
      First time buying a new harness. I had modified original harnesses in the past. Stop wasting your time with the original. This harness fit perfectly and start to finish including the wire looms the job took two hours. This is the way to go. 
      Cruzer
    • Great product
      This is the second PSI harness that I’ve purchased both worked great. I’ve recommended this company to friends that have also been happy with the company and support received.
      Daniel
    • Harness
      Well I really like the service I got when ordering harness but haven’t installed it yet so will let you know more when I get done 
      Vcook
    • Stand alone Harnesses
      Everything plugged in right and it all worked put it on the engine stand and it started up and ran for the test run all worked great
      Alan B
    • Always a good product!
      Very satisfied! I also purchase your products. They are quality products that always work. 
      The Shoppe
    • Great purchase
      Great product, labeled and all instructions very easy. Great customer service. Very helpful. 
      John keeis
    • Great harness
      Was a very easy install this is coming from a Holley user some of the wires had to be lengthened and some shorten but it’s not vehicle specific so that comes with it next time around I will do the softer loom just for appearance purposes 
      Drew
    • Good looking harness
      I was told to just get an Amazon harness. Well I tried never doing a conversion before. After a few minor problems with the wrong fittings and very bulky plastic covers I decided to try a more expensive harness. The difference in quality and looks was immediately evident. This product is a definate step up and the tech support is available . I don't know about the durability but I expect it to last a very long time.
      R55CHEV
    • Good product, great customer service
      Wiring harness was well made and arrived fast. I had a problem with one of my sensors on the engine and the customer service was awesome and very helpful.
      Eli
    • Quality product
      Simple instillation, easy to read instructions ,great customer service
      Gascan
  • Applications

    Engine Applications: LS1, LS6, LR4, LM7, L59, LQ4, LQ9, LM4, L33

    Engine Year Availability: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

    Originally Equipped Vehicle: Corvette, Camaro, GTO, Commodore, Caprice, HSV, VXR8, Silverado, Sierra, Suburban, Tahoe, Escalade, Hummer H2, Hummer H3, Avalanche, Escalade EXT, Denali, GMT 800, GMT 820, GMT 830

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