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92-95 Civic KTuner Conversion Harness Installation Instructions

Plug the conversion harness C101 (large flat grey) connector into your 05-06 style engine harness. 

Plug the conversion harness 'E' (white) connector into your KTuner ECU.

Secure the relay out of the way near the ECU.

Route the oxygen/air-fuel sensor connector through the firewall to your air-fuel sensor on your exhaust manifold or header.

Route the remaining long portion of the harness under your dash to the driver's side.  You can either route it through the firewall on the driver's side to your driver's side shock tower, or, pull your chassis harness on the shock tower back into the cabin and connect it there.

On the remaining loose wires near the ECU, connect as follows:

  • Connect the green wire with yellow stripe to your factory fuel pump wire.  The factory fuel pump wire is green with a yellow stripe and connects to your OBD1 ECU plug A7
  • Connect the green wire with orange stripe to your factory MIL/CEL wire.  The factory MIL/CEL wire is green with an orange stripe and connects to your OBD1 ECU plug A13
  • Connect the white wire with black stripe to your factory brake switch wire.  The factory brake switch wire is green with a white stripe and connects to your OBD1 ECU plug D2
  • Connect the green wire with red stripe to your factory ELD wire.  The factory ELD wire is green with a red stripe and connects to your OBD1 ECU plug D10

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