i have a problem now.no vtec, when i bought the motor the vtec would kick in and the car would pick up and go. now my speed odometer dont work and niether does my vtec. but evey now and the it will sputer on along with my speed odometer it's only when my speed odometer works the vtec works but it hasn't for like 3 weeks but every now and then it will flicker. any idea on what this is. i also noticed my motor is running realy rich...please help asap thanks........i have a built d16z6 sohc vtec