IRC1
49
C
D
B
73
20
A
Chapter XII. Engine management system
133
C
B
D
A
• Silicon – 4 mg/m3
(c) Recommended operating conditions:
3. Engine oil consumption should not exceed 0.02 l/h.
• ÿÿÿ – 0.0085 g/l
4. Pin arrangement
1. Exhaust gas temperature: 200–
5. Troubleshooting
ÿ A: output signal
850°C;
(a) Disconnect the oxygen sensor power connector and measure the
continuity at each of the wire harness pins with a standard digital
multimeter.
(b) Measure the resistance between terminals C and D of the oxygen sensor
using a standard multimeter: 9.6 ± 1.5 ohms. If the resistance value does
not match the standard value, replace the sensor.
2. The level of impurities in the fuel must be below the
following values:
ÿ B: signal ("ground")
ÿ C: heating element
• Lead – 0.013 g/l
(c) Check oxygen sensor voltage with a diagnostic scanner. In the off state,
its value should be above 1000 mV, and in the operating state, with
stable parameters and coolant temperature above 80 °C, it should
fluctuate in the range from 300 to 600 mV.
• Phosphorus - 0.0012 g/l
ÿ D: heating element
• Sulfur - 0.04% (by weight)
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