I have a 91 civic dx standard and traded my old civic for a complete b18a1 civic swap or so i thought. The swap came with the pr4 ecu and the mpfi wiring done to the engine harness and the b18a1 of course the engine is already in but it doesnt plug up to the harness coming thru the firewall while the ecu plugs right in. Im lost and i cant seem to find anyone that knows about this swap do i just need a 91 civic si wiring harness to plug up to the ecu and go thru the firewall? Thanx for any responses im stumped
Phil
Phil