Trying to find out which port goes where? 91 camaro Throttle body 3 ports top to ccv center to ? bottom to heater. Can anyone help? Thanks Steve

 

the lower goes to the heater core better to bypass the coolant warming up the air going into the tb and just run it directly off the manifold fitting. the large one on top is hooked up to the pass valve cover for crankcase vent you can plug this and put a breather on the valve cover aswell., the middle one goes to the evap canister. If you are not using that install a vacuum plug. the small one on the other side of the tb goes to the egr solenoid than from the solenoid to the egr. if you are not using the egr you will need to plug this port as well and reprogram the memcal code 32 out.

 

Thanks for the reply. My first time trying injection. Lots to learn yet.

 

np