Just swapped a z6 onto a d15b7 after blowing the stock motor. Vtec not engaging and got a code 21 on the p28 virgin. When I put in a chipped p28 where vetec sjould kick in at 4500 it still doesnt kick in. it throws 19, 21, 41. Changed vtec solenoid and still not engaging. Do i have to reset the ecus,?

 

How did you wire VTEC?

 

Did you pull the restrictor orifice out of the oil feed hole in the block?

 

Good call ^