2. Disconnect the air intake bypass hoses from the IAA block and loosen the clamps securing the air hoses to the regulator bypass.
3. Disconnect the wiring from the IAA block (photo).
47.3. Air intake bypass pipe 'A', IAA block connector 'B', IAA block mounting bolts 'C'
4. Unbolt the IAA block from the intake manifold and remove it, separating it from the regulator air hoses.
5. Do not attempt to disassemble the IAA block.
6. Installation is carried out in the reverse order, tighten the bolts with the tightening torque specified in Specifications. If a new unit is installed, check and adjust idle speed and mixture.