الموضوع: معدل البنزين للأسبيرانزا

آسف على التأخير لأنى لسة داخل على الموضوع النهاردة بس ... سنسور الأوكسيجين حتلاقى تفاصيل عمله فى الموقع دة:
http://en.wikipedia.org/wiki/Oxygen_sensor

و خصوصاً الفقرة دى:

[align=left:3b8cd39f21]An automotive oxygen sensor, also known as an O2 sensor, lambda probe, lambda sensor, lambda sond or EGO (exhaust gas oxygen) sensor, is a small sensor inserted into the exhaust system of a petrol engine to measure the concentration of oxygen remaining in the exhaust gas to allow an electronic control unit (ECU) to control the efficiency of the combustion process in the engine. In most modern automobiles, these sensors are attached to the engine's exhaust manifold to determine whether the mixture of air and gasoline going into the engine is rich (too little oxygen) or lean (too much oxygen).

This information is sent to the engine management ECU computer, which adjusts the mixture to give the engine the best possible fuel economy and lowest possible exhaust emissions.[/align:3b8cd39f21]

و كمان الفقرة دى:

[align=left:3b8cd39f21]Normally, the lifetime of the sensor is about 30,000 to 50,000 miles. The failure is usually caused by buildup of a deposit on the probe, which prolongs its response time and may cause total loss of ability to sense oxygen. The probe then tends to report lean mixture, the ECU enriches the mixture, the exhaust gets rich with carbon monoxide and hydrocarbons, and the mileage worsens.[/align:3b8cd39f21]