Mazda CX-9 Grand Touring 2009 Manual page 852

Fig. 30: View Of HO2S, SST & Torque Specifications
Courtesy of MAZDA MOTORS CORP.
HO2S (RH) REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Remove the following part for easier access.
1. Remove the cowl panel. (See COWL PANEL REMOVAL/INSTALLATION .)
3. Disconnect the HO2S (RH) connector.
NOTE:
4. Remove the HO2S (RH) using the SST.
NOTE:
5. Install in the reverse order of removal.
Fig. 31: View Of HO2S, SST & Torque Specifications
Courtesy of MAZDA MOTORS CORP.
REAR HEATED OXYGEN SENSOR (HO2S) INSPECTION [MZI-3.7]
NOTE:
Before performing the following inspection, make sure to follow the
procedure as indicated in the troubleshooting flowchart. (See HOW TO
USE THIS MANUAL .)
REAR HEATED OXYGEN SENSOR (HO2S) VOLTAGE INSPECTION
1. Warm up the engine to normal operating temperature.
2. Using the M-MDS, monitor the following:
Vehicle speed (PID: VSS)
2008 Mazda CX-9 Grand Touring
2008 ENGINE Control System (MZI-3.7) - Mazda CX-9
If necessary, lubricate the HO2S (RH) with Penetrating and Lock
Lubricant loosen to aid in removal.
Apply a light coat of anti-seize lubricant to the threads of the HO2S.