i got a 95 civic hatch and i recently did a LS/VTEC swap. and it runs fine and the vtec works and all but its throwing a code 7,21,22. and i was wondering how can i make the CEL go away. thanks in advance.

 

Your tps sensor is bad.

Seems like you didnt hook up vtec. or your solenoid is bad. or you need to bypass your wiring or something.

If you were smart, you would have looked on top of this page and found that out yourself:
https://honda-tech.com/zerothread?id=682412

I heard of some people bybassing your vtec oil pressure by connecting d6 pin with A4 pin on the ECU, but I don't remember clear enough to tell you what to do. Just search, you'll find that this topic has been discuss so many times.