just swapped a 88 si intake,distributor,resistor box,and an 89teg ecu onto my 91 crx d15 swap went good crunk up on the first try but I took it to the road and the check engin light came on and the ecu threw out a code 3 what could be the problem I resett the ecu and it sill came back I tried a map out of a teg and it did the same thing but kinda worse car wold not accelerat with out it seeming like it had a fuel cut I checked the wires they seem to be fine maybe a vacume line in the wrong place where are they supossed to go anyway maybe I have them wrong could someone help me out here ? sorry this is so long

 

there is a port on the tb for the map sensor.
but you can use any port on the plenum as well

 

Possible you crossed the MAP and TPS sensor connectors? Have seen that happen more than once.

 

A code 3 is usally dealing with something wrong with the output, from the sensor itself. While the code 5 is dealing with wiring, connections, ect...