I just got done installing a D15B into my 91 CRX. I am now throwing codes 10 and 14. I didn't have these codes before i changed motor and now i do with new motor. Does anyone know what may be causing this.

 

Code 10 is the intake air temperature

Code 14 - Electronic Air Control Valve
Lets extra air into the intake manifold, to help control the idle under different loads.

Check the O-rings, for mountng condition.
Clean the inside of the Valve after removing, using any kind of solvent that will remove carbon build up. By spraying it inside the two holes ect...

Place the flat end of a screw driver on the EACV while the engine is running. Place the handle against your ear and listen. Should hear something in there jumping back and fourth at a rapid rate.

EACV Sensor Wires:

1 Blue/Black
1 Yellow/Black