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2014+ Gen V LT4 (Direct injection) Automatic/Manual transmission Standalone harness

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APPLICATION: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Gen 5 (direct injected) LT4 supercharged engines.

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

ADDITIONAL ITEMS REQUIRED: E92 ECM                   


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TRANSMISSION OPTION
ADD/CHOOSE LOOM (BARE OR BRAID)
ADD E85 FLEX FUEL SIGNAL WIRE
ADD / CHOOSE A PEDAL TYPE
ADD O2 SENSORS (SAVE $5)
ENGINE TO CHASSIS GROUND STRAP KIT (RECOMMENDED)
FAN CONTROLLER RECOMMENDED FOR E FAN | SAVE $5
Sold Out! Pre-order Now
SKU: HAR-LT4
HAR-LT4
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Have questions, on a time crunch, or just need this quick?          Give us a call: 732-276-8589                                                              Email: CustomerService@PSIConversion.com
  • APPLICATION: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Gen 5 (direct injected) LT4 supercharged engines.

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

    ADDITIONAL ITEMS REQUIRED: E92 ECM                   

    Gen 5 Controller kits Available Here                   

    CONNECTIONS FOR:

    • Fuse/Relay Box
    • Fuel Pump Control (Relay included)
    • Fan controls (Fan controller PAC-2800BT and Relays sold separately KIT-1010)
    • Check Engine Light, Speedo output, Tachometer, OBD2 Port
    • Accelerator Pedal
    • Throttle Body
    • 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

    TRANSMISSION COMPATIBILITY:

    All 8 + 10 Speed TCM Tuning REQUIRE your TUN (Transmission unique number). Without the TUN from your transmission you may experience shifting issues, communication errors, no gear progression or other issues. Warranties can not be honored without this information.

    6L80/90Es: Must be 2013+ model year transmissions to work with a Gen 5 LT system.

    8L80/90Es: 2014-2018 gen 1 model years currently compatible. The gen 2 8 speeds (2019+) are currently NOT compatible.

    10L80/90Es: All 2017-2018 Gen 1 10 speed transmissions are compatible. 2019-21 2wd Truck/SUV and all 19+ Gm Performance and Camaro are compatible. 2022+ Gen 2 10 speed transmissions with the electronic transmission range select (ETRS) are NOT compatible. These ETRS transmissions will only have a "park" and "out of park" position on the external shift lever on the driver side of the transmission.

    FANS: Fan control functionality is dependent on the operating system your ECM requires. Depending on your particular setup fan operation cannot be guaranteed using a relay system like KIT-1010. Fan control and operation can only be guaranteed if using PAC-2800BT.

    NOTES: These Harnesses are designed for retrofitting '14+ LT4 Supercharged GEN V 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 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. A sliding grommet seal allows for professional, leak proof installation.

    Harnesses are professionally constructed from Brand New GM Factory/OEM 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.


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