89 civic si with b16a. engine was just installed. we worked out some minor problems. Now the engine throws no engine codes and runs fine but there is no vtec. has anyone had this problem or does anyone know how to fix it? any help is appreciated

 

be sure that you have oil pressure, and be sure the VTEC solenoid works. also make sure you're letting the engine come up to temp before gut wrenching it.

 

how can i check the v-tec solenoid with out replacing it?

 

Is your speedo cable attached?

 

speed cable is attached but the speedometer hand jumps a little sometimes. I changed the vtec solenoid and oil pressure switch today and that didnt help

 

there you go....make sure that it is all the way in.

JAson

 

changed speedo cable out with a new one. speedometer works fine now but i still have no vtec. any other ideas?

 

Wiring

Is the water temp gauge working? maybe the ECU's not seeing the water temp signal?