A AMLOR New member Nov 19, 2020 #2 H2Owl said: Capped port Click to expand... it is just that...a plugged and unused port. Perhaps used on some other vehicle, or country and Toyota just made 1 intake manifold to fit multiple applications. That said if you want to add a engine vacuum gauge, theres your starting point! AMLOR
H2Owl said: Capped port Click to expand... it is just that...a plugged and unused port. Perhaps used on some other vehicle, or country and Toyota just made 1 intake manifold to fit multiple applications. That said if you want to add a engine vacuum gauge, theres your starting point! AMLOR