17.2.7.3
Technical Parameters
● Air-fuel ratio strong threshold value:＞750VDC
● Air-fuel ratio rare threshold value:＜120Mvdc
● Heater power of sensor: 7.0W
（the above parameters are received from the measuring stand; working condition: exhaust
temperature: 842°F; air-fuel ratio: 70%; voltage: 10Hz, 13.5V.）
● Resistance of heater: 9.6±1.5Ω（measured lower than 70°F）
● Working temperature scope 500-1562°F
17.2.7.4
Installation Requirements
● Installation angle（to the level）：≥10°
● Tightening torque: 40-60Nm
17.2.7.5
Fuel requirement
● Pb≤0.005g/L
● P≤0.0002g/L
● S≤0.04%(
● Si≤4ppm
17.2.8 Ignition Coil
17.2.8.1
Working Principles
The ignition coil can provide energy to the spark plug. The high voltage wire is used to
connect the ignition coil and the spark plug.
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