I have a 3 stage vtec d15b engine head and block with intake, injectors, distributor, alternator, p2j-j62 ecu together with the engine harness. My existing car is an EG8 93 vti honda civic with a d15b vtec engine and s20 gear box with a p08 ecu. I know the 3 stage engine is from an ek3 obd2 and I have an obd1. I want to put the 3 stage in my car but still not sure about the compatibility with the harness. Is the any one who has ever done a similar swap.