Hi
I have a 2004 Honda Civic with auto transmission (PCM Powertrain Control Module). My plan is to swap a larger engine (2000 Prelude engine auto transmission H22A4). If this swapped engine does not include original transmission. What do you recommend for its replacement? The article states we can use the B series, does this apply to my plan and what B series would work? Any advice?

Also, will the Neptune Auto ECU plug directly into stock PCM? If not, what do you recommend?

Thank you,
Noel