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07 - 14+ Gen 4 LS/Vortec (58X) Drive by wire automatic transmission standalone harness

HAR-G4WA

APPLICATION: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014+ 58X LS2 6.0 Corvette & Trailblazer SS, LS3 6.2, GMPP LS376 480 & 525, LS7 7.0 Corvette & Camaro ZL1, Vortec LY6, L92, L76, LMG, 4.


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(35)
Ships Today When Ordered Before 2pm CST
$699.00
SELECT TRANSMISSION TYPE
CAM SENSOR TYPE
ALTERNATOR TYPE
MASS AIR FLOW TYPE (WIRING MUST MATCH SENSOR USED)
INTAKE MANIFOLD / MAP SENSOR TYPE
ADD / CHOOSE A PEDAL TYPE
SELECT LOOM TYPE
ADD CRUISE CONTROL VCM-100
ADD FLEX E85 FUEL SIGNAL WIRE
ENGINE TO CHASSIS GROUND STRAP KIT (RECOMMENDED)
ADD O2 SENSORS (SAVE $5)
ADD FUSE BLOCK MOUNTING BRACKET
ADD PCM MOUNTING BRACKET
QUANTITY

07 - 14+ Gen 4 LS/Vortec (58X) Drive by wire automatic transmission standalone harness

APPLICATION: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014+ 58X LS2 6.0 Corvette & Trailblazer SS, LS3 6.2, GMPP LS376 480 & 525, LS7 7.0 Corvette & Camaro ZL1, Vortec LY6, L92, L76, LMG, 4.8, 5,3, 6.0 and 6.2 ENGINES with automatic transmissions and E38 ECM

PARTS INCLUDED: Complete engine and transmission wiring Harness, Instruction Manual

ADDITIONAL ITEMS REQUIRED: E38 ECM

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 designed for retrofitting all '08 - '15 LS/Vortec engines into older muscle cars and street rods or newer non-emissions controlled vehicles. They are completely plug and play with four wire hookup (switched power, constant power and ground connections required). Harnesses are designed with 4 - 5 feet of length from the rear of the cylinder head to the PCM mounting position under the vehicle dashboard. 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, contact PSI to purchase.

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

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

  • Reviews

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    Write a Review
    • Best ever Harness and tech service
      Excellent quality harness had some issues with the ECM programming called detect Guy. He walked us through it. The GEN four ECM is quite a bit harder to program fan switches, key, cranking, etc.. 
      I would recommend next time getting a GEN 4 ECM programmed by psi 
      Old Sool
    • 10 out of 10
      Fast shipping good instructions,price fair,i recommend a 10.
      Ronnie
    • The easiest beginners plug in play harness my first time installing one definitely would purchase it again.
      Definitely would purchase it again great quality decent price.
      Nando
    • I’d recommend to anyone
      Super clean. Harness isn’t to loose or to tight. Will definitely buy from them again! 
      Nate
    • Only harness you need
      I've purchased harnesses from several vendors. Quit shopping after purchasing from PSI. Great quality, fast service, and competitively priced.
      Car show giveaway pullout
    • High quality harness and great service
      There are cheaper options but they come at a cost. This harness is high quality and worked perfect 
      Jason
    • Best harness on the market for the price
      I've used several harness suppliers over the years but the last ten or so I've purchased have all come from PSI. We give a way a LS pullout every year for a local car show. A previous supplier didn't get my harness to me on time. I called PSI and explained the problem I had and that I only had a little over a week to get a harness here and get this put together and tuned. This was several years ago and at the time PSI was about four weeks out on getting the harness built. They managed to get it built and to me in less than a week leaving me more than enough time to get it on and tuned. Now days they seem to have many popular harnesses either prebuilt or they can turn them out in a day or two because they typically arrive less than a week from when I place the order. Since they took care of me on the first harness that I needed in a hurry I've used them exclusively every since then and I've never had a problem.
      Car show giveaway pullout
    • 1968 Camaro 6.0 gen swap
      Hardness is perfect , loved it plug and play as they say’ ! Price is high but you get what you pay for high quality hardness well made.
      Rudegil
    • Perfect fit, better service
      Harness was exactly as I needed as far as length and plugs. Everything found it's home quickly and nothing was extra or missing. Had a few issues while trying to start and they were quick to answer back and help work through a troubleshooting that ended with nothing related to their harness, just my tube. Great service. Second harness from these guys. Definitely recommend.
      Mike
    • customized for my build
      great purchase!
      RHof
    • Always perfect
      I have used different brands and have always had issues.  With psi it’s always one and done.  Great product and even better customer service 
      Gil
    • Ls swap harness the correct way
      I always recommend my customers to run a psi harness on all my ls and lt swap its the only correct way
      Timothy_white_customs
    • Very organized product
      Unfortunately I have not gotten the car to start yet. But the staff at PSi is very helpful at digging in and trying to help resolve the no start issue. They email daily with more issues to check. Very responsive.
      Jones
    • Excellent product
      Excellent product with clear instructions.. called the customer service a couple of times with a few questions and the cleared everything up! Highly recommend for any LS Swap!
      Guster
    • Great Product
      Really good quality harness. Component locations were spot on. Was able to locate ecm under seat of 40 truck without any extensions.
      Jeffro
    • Cutdogg
      Good buy
      Cutdogg
    • The cool stuff
      Put you money in the sun and sit in the shade :)
      Desert K5
    • Solid every time
      These guys always take care of me. Very knowledgeable and their tech support is awesome.
      Vern
    • Very professional.
      Don’t remember the gentleman’s name but he was very helpful and gave me options and how to go about my purchase. 
      JESUS PEREZ
    • Excellent customer service, Great product
      Harness worked great, staff easy to deal with, I would not hesitate to use PSI again.
      The only thing I was not expecting was the harness was assembled to fit inside the cab. Had I of known this I would have requested ECM mounting designed to mount on rad core support and fuse box inside cab.
      Crew454
    • Good product
      I bought a cheap harness off eBay and had nothing but problems. Bought from PSI, installed it and the truck fired up without issue. PSI is thorough with the questions about your vehicle which avoids unnecessary problems.
      Repski
    • Excellent harness
      Great wire harness, everything fit as it should good workmanship and neatly done
      Mike76
    • Great harness
      I purchased this harness to replace a bad one from another manufacter. It was great and easy to install.
      SteveS
    • great harness
      great harness easy to work with and great people when you call with questions
      lnj
    • Great product
      Great recommendation from Kyle at HRH Racing. This is a top notch product for sure. 
      Hot Rod 70
    • Installation
      I installed at least 20 units only had 1 issue with a defect plug .on harness in 2013 great product .Turbo Tommy .
      Turbo tommy
    • PSI wire harness
      The harness is worth the money and once I made the hole through my firewall and fed the wires through, I see it really looks good.
      Odogg_912
    • Great product
      Very good product easy to install
      Nor cal
    • Excellent product
      Great fit nicely done. Support is the best they are very knowledgeable and helpful will be using them again thanks for your help 
      JMS_IDAHO
    • Quality harness
      2nd PSI harness I used. Gen 3 the first time gen 4 second one. 
      Very exceptional harness. Absolutely zero problems. Ordering was very precise. 
      Chauncey
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