How do I connect the Cortex EBC wiring harness to the 2006-2011 Honda Civic Si ECU? (SIRHC LABS 2006-2011 Honda Civic Si 44-Pin Connectors Instruction Guide)

Answer

manuals.plus

Feb 28, 2025 - 11:19 PM


To connect the Cortex EBC wiring harness to the ECU of your 2006-2011 Honda Civic Si, you will need to follow the instructions provided in the manual. The ECU is located in the engine bay next to the battery and has three 44-Pin connectors labeled A, B, and C. The A connector is the one you will be working with for this connection.

Here are the connections you need to make:

1. Engine Speed (RPM):
   - Cortex Signal: Pink wire
   - ECU Signal: NEP (Engine Speed Pulse)
   - ECU Pin: A-28
   - ECU Wire Color: Blue

2. Vehicle Speed:
   - Cortex Signal: Green wire
   - ECU Signal: VSSOUT (Vehicle Speed Output)
   - ECU Pin: A-29
   - ECU Wire Color: Blue

3. General-Purpose:
   - Cortex Signal: Orange wire
   - ECU Signal: APSA (Accel Pedal Position A)
   - ECU Pin: A-17
   - ECU Wire Color: Yellow

Make sure to connect the corresponding Cortex wire color to the correct ECU signal and pin according to the provided table.

Additionally, the manual provides some vehicle configuration settings that you may need to adjust:

- RPM Detection:
  - Mode: RPM
  - Pulses Per Cycle: 4
  - Rotations Per Cycle: 2

- Speed Detection:
  - Mode: VSS
  - Pulses Per Mile: 6,000
  - Scale Factor: 1/32
  - Hz Limit: 12.5 KHz

- Gear Detection:
  - Follow the steps in the Setup - Gear Detection section of the Help utility to determine the correct EVS ratio settings for gear detection.

- Throttle Position Detection:
  - Mode: TPS
  - Closed TPS Voltage: 0.50
  - Open TPS Voltage: 4.70

Please refer to the SIRHC LABS 2006-2011 Honda Civic Si 44-Pin Connectors Instructions manual for further details and any additional information you may need.