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Air Fuel Ratio
Fuel ratio of the exhaust gas analyzer is a measure of the concentration of oxygen in the high-precision test equipment.
Air-fuel ratio exhaust gas analyzer is a measuring oxygen concentration in high-precision test equipment to arrive at the air-fuel ratio combustion engine signals. Its core component is a wide range oxygen sensor, in essence, is the air-fuel ratio analyzer peripheral oxygen sensor control and signal output circuit.
When idling, the air-fuel ratio table pointer to 14.7, as normal. If the reading is too small, said fuel injection too thick, if the reading is too large, which means that the injection is too thin. Air-fuel ratio is not normal vehicle, you may need to repair the fault.