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Remove the intake elbow from the top of the intake manifold, just a CAC hose clamp, couple of bolts and it's off. It has a reusable o-ring under it. It's alluminum so it's easy to drill and tap. With it off the engine, it's easier to work on and no chance of alluminum chips entering engine during work.
The easiest place is to cut into the MAP sensor hose and put a T in it. The MAP sensor is on a bracket at the passenger side rear of the engine. The hose runs from the sensor to the intake manifold.
The easiest place is to cut into the MAP sensor hose and put a T in it. The MAP sensor is on a bracket at the passenger side rear of the engine. The hose runs from the sensor to the intake manifold.