Mazda 6 Facelift 2005 Training Manual page 83

Engine
•
The signal of the upper exhaust gas temperature sensor allows checking, whether the
exhaust gas temperature required for operation of the oxidation catalytic converter is
reached.
•
The signal of the middle exhaust gas temperature sensor is used to determine, whether
the exhaust gas temperature required for regeneration of the filter is reached.
•
The signal of the lower exhaust gas temperature sensor serves to monitor the exhaust
gas temperature during the regeneration process.
•
In addition, the information from the exhaust gas temperature sensors is used for the
calculation of the soot amount burnt off in the DPF.
1 Exhaust gas temperature sensor
Service Training Mazda6 Facelift
Diesel Engines
2 PCM
M6FL_01084
01-69