Engine Petrol
Engines
Rear HO2S
•
A zirconium element is used on the sensor. When there is a difference between the
oxygen concentration inside and outside the element, electromotive force is generated
by the movement of oxygen ions (inside of the zirconium element: atmosphere, outside:
exhaust gas). The electromotive force changes significantly at the boundary of the
stoichiometric air/fuel ratio (= 14.7). The PCM receives the voltage generated from the
HO2S directly, and increases or decreases the fuel injection amount by the fuel injection
control so that it is close to the stoichiometric air/fuel ratio.
•
When the temperature of the zirconium element is low, electromotive force is not
generated. Therefore the HO2S is heated by a built-in heater, facilitating the oxygen
sensor activation. Due to this, the sensor is efficiently activated even immediately after
cold-engine startup, and a stable sensor output can be obtained.
M6FL_01022
1
High
4
Rich
2
Output voltage
5
Air/fuel ratio
3
Low
6
Lean
Service Training Mazda6 Facelift
01-25
Summary of Contents for 6 Facelift 2005
Page 1: ...TRAINING MANUAL Mazda6 Facelift ...
Page 4: ...Service Training Mazda6 Facelift ...
Page 5: ...00 General Information ...
Page 11: ...01 Engines ...
Page 26: ...Petrol Engines Engine Overview M6FL_01013 01 12 Service Training Mazda6 Facelift ...
Page 28: ...Petrol Engines Engine Wiring Diagram M6FL_01014 01 14 Service Training Mazda6 Facelift ...
Page 94: ...Diesel Engines Engine Parts Location M6FL_01079 01 80 Service Training Mazda6 Facelift ...
Page 96: ...Diesel Engines Engine Wiring Diagram M6FL_01076 01 82 Service Training Mazda6 Facelift ...
Page 116: ...Diesel Engines Engine NOTES 01 102 Service Training Mazda6 Facelift ...
Page 117: ...02 Suspension ...
Page 121: ...04 Brakes ...
Page 125: ...05 Transmission Transaxle ...
Page 128: ...05 Transmission Transaxle Table of Contents 05 Service Training Mazda6 Facelift ...
Page 130: ...Transmission Transaxle Notes 05 2 Service Training Mazda6 Facelift ...
Page 148: ...G66M R Transmission Transaxle Notes 05 20 Service Training Mazda6 Facelift ...
Page 154: ...A26M R Transmission Transaxle Reverse Gear M6FL_05022 05 26 Service Training Mazda6 Facelift ...
Page 160: ...A26M R Transmission Transaxle Notes 05 32 Service Training Mazda6 Facelift ...
Page 162: ...JA5AX EL Transmission Transaxle Notes 05 34 Service Training Mazda6 Facelift ...
Page 174: ...FS5A EL Transmission Transaxle Notes 05 46 Service Training Mazda6 Facelift ...
Page 175: ...08 Restraint System ...
Page 179: ...09 Body Accessories ...
Page 184: ...Body Body Accessories Notes 09 2 Service Training Mazda6 Facelift ...
Page 226: ...Accessories Body Accessories Notes 09 44 Service Training Mazda6 Facelift ...