i just did a swap in my 98 civic coupe and everything is fine but on cold starts check engine light comes on and i dont got vtec it eventually goes off after driving it for a while and i get my vtech back. but it just bugs me that it comes on ! anyone have a clue to what might be wrong and can help me.. by the way its a jdm b16a motor thanks

 

Assuming everything is wired up correctly, this will help you determine the code: https://honda-tech.com/zerothread?id=682412

 

jump the cel plug and count the flashes that will help us help you