mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Evaporative Emissions System > < Engine Controls/Emissions - OBD II Diagnosis Aid|Page 2042
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Catalytic Converter: Service and Repair

THREE-WAY CATALYTIC CONVERTER REMOVAL / INSTALLATION

1. Raise the vehicle. See LIFTING.
2. Disconnect the downstream oxygen sensor connector.
3. Remove the downstream oxygen sensor. 
4. Remove the muffler and tailpipe.
5. Remove the nuts.

NOTE:  The exhaust hanger bracket insulators can be reused if they show no signs of damage.

6. Remove the three-way catalytic converter and the exhaust outlet pipe frame brackets.
7. Install the exhaust inlet pipe gasket, the three-way catalytic converter and the exhaust outlet pipe frame brackets.
8. Install the nuts.

Tightening torque
25 - 35 N.m { 2.6 - 3.6 kgf.m, 19 - 25 ft-lbf }

9. Install the muffler and tailpipe. 

10. Lower the vehicle.

Evaporative Emissions System > < Engine Controls/Emissions - OBD II Diagnosis Aid|Page 2042