RH Bank

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable.
Remove the plug hole plate.
Remove the dynamic chamber. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Remove the ignition coil. (See IGNITION COIL REMOVAL/INSTALLATION .)
Remove the OCV connector.
Remove the ventilation hose.
Remove the cylinder head cover tightening bolt.
Remove the OCV with cylinder head cover raised as shown in the figure.
NOTE:
- Take care not to let the OCV tightening bolt slip into the timing chain cover when removing the OCV tightening bolt from engine front.
Fig 1: Raising Cylinder Head Cover
Courtesy of MAZDA MOTORS CORP.
Install the OCV.
Tightening torque

8.0-12.0 N.m {82-122 kgf.cm, 71-106 in.lbf}
Install the cylinder head cover. (See CYLINDER HEAD (RH) INSTALLATION NOTE .)
Install the ventilation hose.
Install the OCV connector.
Install the ignition coil. (See IGNITION COIL REMOVAL/INSTALLATION .)
Install the plug hole plate.
Install the dynamic chamber. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)