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99-07 Gen 3 LS 24X Drive by Cable Standalone Harness | T56/Manual/Non-Electronic | PSI

HAR-G3CM

APPLICATION: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Chevy, GMC, Cadillac and Hummer Vortec truck engines (DRIVE BY CABLE ONLY) w/ T56/TR6060 or non-electronic (TH350, TH400, POWERGLIDE, 700R4, 200-4R) transmissions using


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Ships Today When Ordered Before 2pm CST
$599.00
INJECTOR TYPE
MANUAL TRANSMISSION TYPE
INTAKE MANIFOLD / MAP SENSOR TYPE (WIRING ONLY)
AC RECOGNITION (IDLES ENGINE UP)
DRIVE BY CABLE CRUISE CONTROL
ADD E85 FLEX FUEL SIGNAL WIRE
SELECT LOOM TYPE
ADD TCC/BRAKE SWITCH KIT
LS GAUGE INSTALL KIT (LS TO 1/8NPT ADAPTERS)
ADD (2) O2 SENSORS (SAVE $5)
ENGINE TO CHASSIS GROUND STRAP KIT (RECOMMENDED)
ADD FUSE BLOCK MOUNTING BRACKET
QUANTITY

99-07 Gen 3 LS 24X Drive by Cable Standalone Harness | T56/Manual/Non-Electronic | PSI

APPLICATION: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Chevy, GMC, Cadillac and Hummer Vortec truck engines (DRIVE BY CABLE ONLY) w/ T56/TR6060 or non-electronic (TH350, TH400, POWERGLIDE, 700R4, 200-4R) transmissions using RED/BLUE 411 P01 PCM.

PARTS INCLUDED: Complete engine and transmission Harness, Instruction Manual             

ADDITIONAL ITEMS REQUIRED: RED/BLUE 411 P01 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: Harnesses are completely plug and play with four wire hookup (switched power, constant power and ground connections required). Harnesses are designed with a sliding grommet seal and 4 - 5 feet of length from the rear of the cylinder head to the PCM mounting position under the vehicle dashboard. These harnesses are designed for retrofitting '99 - '03 Vortec engines (5.3, 5.7, 4.8, or 6.0) with T56/TR6060 Manual or Non-Electronic transmissions into older muscle cars and street rods or newer non-emissions controlled vehicles. Harness allows use of the factory intake manifolds and all factory fuel  injectors types (Multec, EV1, and EV6).  A sliding grommet seal allows for professional, leak proof installation.

Transmission compatibility is not limited to those listed; any manual or non electronic transmission can be used as the computer and harness are provisioned to look for no input from the transmission for operation.

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

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    Write a Review
    • Perfect fit
      Great product! It fit like a charm. Very happy with quality
      TMYPROD
    • Should have bought this to begin with.
      I fought spend a bunch of money on a harness. After wasted time and wasted money I broke down and bought my PSI harness with in an hour I had my project running. Best money spent on my project.
      LeroyWinkins
    • Great product
      Product is exactly as described, shipped and showed up very fast.
      Dylen W.
    • 1985 C-10/LM7
      I tried to pin out my original wiring harness, only to be left with an engine that did not start. PSI sent me a harness within 4 days of ordering, and it cranked the second I plugged everything in. This is a no brainer. Spend the money, and do it right the first time. You won’t be upset that you did!
      Devin
    • Wire and Fire........
      Catchy moto right?
      I run a custom built "rock crawler" with a 6.0 LS, stock wiring harness and ECU. After several recent "dead engine incidents" that couldn't be traced or identified, we decided to replace the wiring harness and ECU. After looking at many options and reading lots and lots of reviews I called PSI and was convinced they were the best.
      Upon receipt I was concerned with the length differences between my old harness and the new PSI configuration. However, I was pleasantly surprised how simple, clean and custom fit the install went. In addition, I ordered the ECU with a semi custom tune that they programed to my performance cam and fuel injectors.
      After two hrs determining the perfect pathway, the moment of truth. Power on, Push to start and "Blast Off"! the engine runs and sounds perfect. Money and time well spent.
      Spencer B
    • Supports the Newb!
      My first LS swap LS6 in a ‘67 C10 Step and so I asked dumb questions.  PSI took the time to answer my questions regardless of how basic and then delivered a beautiful product.  So glad I didn’t do one of those cheap stand alones ou there.  PSI is the best! 
      Stuey
    • Square body
      Best harness works perfectly you get what you pay for tried a ebay harness and nothing but problems would recommend psi to my friends
      Richard Dishman
    • LS SCRAMBLER
      harnesses always work perfect and are very nice quality
      foreigner
    • Woah
      This thing is legit. I suck at wiring and initially tried to rework my gen3 lm7 harness myself for my swap. It wasn't going good. It technically worked but I'd feel nervous to drive it further than to work. A shop advised me to get this harness for reliability and appearances and it was well worth it! Fantastic quality, labeled really well, and it came 4 days after I ordered it!
      Snipax
    • Best quality harness on the market
      I have had many harnesses and PSI is the best harness out there easy install and looks factory and plugs in like factory. My tuners in NJ and NC even says these guys make good products! Overall super happy with my two harnesses and computers, about to order another one too!
      ZachP
    • Conversion harness and ecu tune
      This is my second harness with psi. Both times they are patient with my questions and answer them with reassuring knowledge. My first harness and tune had me scared of my car! I did 100 burnouts through all three gears! They did the tune on a bench! The harness got damaged and I had to upgrade the transmission to a t56. They tried to fix my old harness but they have too many updates to it. They took amazing care of me as a second customer and made it an easy decision to get and new one. I recommend the braided housing. It looks amazing! These guys are great!
      Novaman
  • 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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