Just did a H22a swap in my 93 honda accord ex 5speed and the car runs but cuts off while driving. If i start the car up it will stay on but ill cut off within a min or two. It idles kinda rough, The ecu that came with it is F90 which is (OBD1 S40 JDM P0F-902 Accord 95 CB5 H22a Hitachi) I dont have a P13 to test it with do you guys think that ecu is the problem? It throws a code with the F90 but just 21 which is V-TEC control solenoid which i dont currently have hooked up.

 

Anyone?