This engine actually came with a CVT transmission and it is the best combo (3 stage vtec + cvt) to achieve the magical figure of ~28km/l at 60km/hr on a flat road.
You have got the right ecu as well for the engine. Unfortunately the person dismantling the car back at the country of origin have not included the under dash harness in which the TCM is included.
Now you have to look for the cabin wiring which have the TCM so that you can try your luck in making it 100% operational.
I hope you have got the 96-00 civic manual and you have read the CVT part carefully. As per the 96-00 civic manual there are two controller entities in 96-98 civic one known as the TCM (transmission control module) and the other ECM (engine control module or the ECU). While in 99-00 civics the TCM came built-in the ECU/ECM referred to as the PCM (powertrain control module).
96-98 civic TCM and ECM block diagram
96-98 TCM and ECM connectivity diagram
99-00 civic PCM block diagram
99-00 civic PCM connectivity diagram
N.B.: These diagrams directly apply to the USDM civics, color codes and some features may varry than the JDM variants.
Now the question is which ECM have you got (P2J-J62)? Does it need a separate TCM or it is the 2 in 1 unit.
The wiring loom which has been cut and not connected anywhere can be an answer to many questions, please note their color codes and try to match it with the TCM wires you have recently acquired.
I have got the under dash harness and a separate CVT TCM (probably from the 96-98 civic) with connectors and pigtail wires, if you need them you can contact me. TCM part number is 28100-P2C-904 F.
Apart from the TCM you may also need the following items though these are secondary things
- Shift lever assembly with P R N D S L and a Multimatic switch (selection switches also comes on the steering wheel)
- Also a new cluster with the same shift indicator and ECONO light.