Hey i just put a B16a1 in my 4th gen hatch and It is running way rich and idleing at 1,700 RPM's I am using the B16 map sensor as well

 

Did u connect the EAC Valve ?? Also try to adjuct ur idle with the adjuster on the t-body

 

Whats a eac valve I cecked the Idle air control valve if thats what u mean and i tried the adjuster too nothing works

 

that's what i meant. Over here in holland is called an EIAC valve. (elecrtonic idle air control)
That's what i was told at the honda dealer.
Sometimes a clean up of the trottle body might help. Gunk has its nasty habits of disrupting ur idle...or chek ur coolant. The IACV has coolant running true it.