Hondata

I'm planning to build my own Ariel Atom replica with some modifications in chassis and suspension. I'm going to use a K20Z3 engine from a 06-11 Civic Si with 6-speed manual transmission and a K-Pro as well and sure, I have to do the whole chassis wiring and do some modifications to the engine.

1. Is it necessary to change the engine harness to 02-04? Can I modify the stock 06-11 harness or build my own harness compatible with K-Pro? Is there any 02-04 engine harness diagrams to help with modifying the stock 06-11 harness or build a new one?

2. K20Z3 is DBW and must be change to DBC. Does an F-Series TPS work with K-Pro as well or not?

3. What about the oxygen sensor? Any notifications?

1. Yes. No. See http://www.hondata.com/techk20swaps.html

2. Very likely.

3. You will have to use the 02-04 RSX o2 sensor.

I've chosen the K20Z3 because it's very hard to find a K20A around here. So, it would be harder to find a 02-04 RSX harness. Yet I prefer to look for a 02-04 RSX harness diagram to build my own.

You can purchase a harness brand new though an Acura dealer rather inexpensively.