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ECU Installation🔗

The following steps outline the recommended procedures for installing the CORE ECU for your LS motor.

Required Tools/Items🔗

  • 2 - Bosch LSU 4.9 Wideband Sensors (Part #: 17025)
  • Ethernet cable
  • Internet Access

Optional Tools🔗

  • Crimper
  • Wire loom
  • Heat shrink
  • Wire cutters
  • Zip ties
  • Various wrenches, ratchet, metric & standard sockets, screwdrivers, and ratchet extensions
  • Heat gun
  • USB to Ethernet cable adapter

Removal of Old ECU🔗

  1. Disconnect and remove the vehicles battery.
  2. Remove your current ECU.
  3. Remove your current ECU’s harness (if necessary).
  4. Remove any ECU mounting brackets (if necessary).

Installation of CORE🔗

  1. Identify your preferred location for mounting the ECU and clean any debris from that location.

    a. Ensure the ECU is not mounted near any obstruction or any other critical engine components.

    b. Ensure the ECU and harness is mounted away from any moving components, excessive heat, and vibration.

    c. If possible, mount the CORE ECU where the OE ECU was located.

  2. Use a 5 mm drill bit to create the four mounting holes (If applicable).

  3. Mount the ECU, use the supplied 4 lock washers and 4 nuts to mount the ECU.
  4. Torque the 4 nuts to 1.4 Nâ‹…m.

  5. Feed the harness through the firewall (if applicable).

    a. Ensure that the harness wiring is at least six inches away from major heat sources. This distance helps prevent wire insulation from melting or degrading due to excessive heat.

    b. If you must route wires closer to hot spots, consider using heatproof shielding to protect them. This shielding provides an additional layer of insulation and prevents direct exposure to extreme temperatures.

  6. Connect all sensors.

    Note

    • The Gen III Drive-By-Cable Harness is designed with the camshaft sensor located towards the rear of the engine. Many early LS2 24x engines may have the camshaft sensor mounted towards the front of the engine, in the event the camshaft is mounted towards the front of the engine, the camshaft sensor will have to be extended.

  7. Connect all four connectors (A-D) into the ECU.

    a. Connector ports A-D are rated to be disconnected and reconnected 25 times. Users may experience errors if reconnected past the alluded number of times.

    b. On both the Gen III Drive-By-Cable & Gen IV Drive-By-Wire Harness always ground the black 2 ring terminal wire to the chassis, engine block, or cylinder head. If necessary, both 2 ring terminals can be grounded together at the same suitable ground point.

  8. Reconnect the vehicles battery.

  9. Download and install VCM live.

  10. Open VCM Live.

  11. In the menu bar, select Tune > Open Tune.

  12. Browse to Documents > HP Tuners > VCM Live > Tunes and select the base tune that you wish to use with the new ECU.

  13. Connect your laptop to CORE with an Ethernet cable (not included) to the female Ethernet pigtail on the harness.

    Note

    • Be sure to use a USB to Ethernet adapter when connecting to CORE.

  14. Key-on, engine-off.

  15. Click the icon in VCM Live's toolbar.

  16. Complete the activation registration process by filling out the information in the Activation Acknowledgment window.

    Note

    • Once you receive the unlock code and enter the code into VCM live, your 2 year warranty begins.

  17. Create or open a Screen Layout (refer to the VCM Live User Guide).