Chery QQ6 Service Manual download pdf (Page 41)

part of data stream of the engine, and then observe

if part of data stream of the oxygen sensor is

around 100 under standard idling operation.

No Replace the sensor

or the three-way

catalytic converter

12 Start the engine and let it run at idle speed until

coolant temperature reaches normal value.

Next step

Yes Check other part 13 Connect special diagnostic tester for Chery to read

part of data stream of the engine, and then

carefully observe part of data stream of the sensor;

rapidly apply the accelerator pedal for several

times and observe if the output voltage of the

oxygen sensor fluctuates within a comparatively

large scope.

No Replace the sensor

Note: The characteristics and operating principle of rear oxygen sensor is basically the

same as those of front oxygen sensor, in special conditions, they can be interchanged to

use. The only difference between them is their different installation sites (working

atmospheres), therefore, during maintenance and diagnostic processes of the vehicle,

please pay attention to some inspection techniques for front and rear oxygen sensors.

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Chery QQ6 Service Manual Page 41