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2.7.7.17. Conditions of storing of codes of malfunction (P0131 code)

In 3 min. after inclusion of heating of the forward oxygen sensor the control unit of the engine constantly measures tension of a signal of the forward oxygen sensor with intervals of 0,5 pages. If in two cycles of driving tension of a signal of the forward oxygen sensor during 0,5 with appears lower than 50 mV, EBU gives the P0131 code and the control lamp of malfunction of a control system of the engine joins. A conclusion of this code indicates that the forward oxygen sensor or EBU define strong impoverishment of working mix.