Oxygen Sensor - Inspection Of Output Voltage; Oxygen Sensor - Inspection Of Sensitivity - Mazda 626 MX-6 Workshop Manual

4A
CONTROL SYSTEM
Check connector: Green (6 pin)'
4 A—102
OXYGEN SENSOR
Inspection of Output Voltage
1. Warm up the engine and run it at idle.
2. Disconnect the oxygen sensor connector.
3. Connect a voltmeter between the oxygen sensor
4. Run the engine at 4,500 rpm until the voltmeter
Oxygen sensor
/ ^ v
86U04A-205
5. Increase and decrease the engine speed suddenly
6. If the voltmeter dosen't indicate as specified, re­
86U04A-206
Inspection of Sensitivity
1. Warm up the engine to the normal operating tem­
2. Connect the SST to the check connector.
49 H018 9A1
86U04A-207
3. Increase the engine speed to between 2,000 and
86U04A-208
and ground.
indicates approx. 0.7V.
several times. Check to see that when the speed
is increased the meter reads between 0.5V—1,0V,
and when the speed is decreased it reads between
0V—0.4V
place the oxygen sensor.
perature and run it at idle.
3,000 rpm, and check that the monitor lamp flash­
es for 10 seconds.
Monitor lamp: Flashes ON and OFF
more than 8 times/10 sec