ok i have an 88 crx with a jdmd15b swap and it was showing code 3 which is the map sensor. well i went and got a brand new one at auto zone and the car seems to run better but the engine check light is still on and reading same code. i even disconnected the battery to try and re set it but it didnt work. any idea's?

 

Thoroughly inspect all vacuum lines, electrical connectors, and wiring to the MAP sensor.