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Original post by: David Cordell ,


Yes, you can use the K20A3 engine harness with our conversion wiring. The K20Z3 engine has different connectors on some parts of the engine, (knock sensor, ECT, oil pressure sensor, etc) so you will need to swap some of the connectors.

You should use the:

K20A3 engine harness (02-04 5spd only)

K20A3 charge harness

Hybrid Racing conversion harness

02-04 RSX ECU (with Hondata or Immobilizer bypass)