Daewoo Nexia

Since 1994 of release

Repair and car operation

8.2.3. The gauge of concentration of oxygen in the fulfilled gases (ДКК)

THE GENERAL DATA

The gauge of concentration of oxygen in the fulfilled gases


ДКК it is established in the final pipeline and it is washed by a stream of the fulfilled gases. Depending on the oxygen maintenance in the fulfilled gases pressure of a signal of the gauge changes. Pressure of a signal can change from 0,1 In (the high maintenance of oxygen – poor топливовоздушная a mix) to 0,9 In (the low maintenance of oxygen – rich топливовоздушная a mix). It is possible to measure pressure of signal ДКК by the digital voltmeter with full resistance not less than 10 мОм. Use of the usual voltmeter will give the big error of measurement. Constantly supervising pressure of signal ДКК, ECU develops commands of correction of quantity of fuel injected into the inlet pipeline. At a low voltage of signal ДКК (poor топливовоздушная the mix) ECU increases gasoline giving, at a signal high voltage (rich топливовоздушная a mix) – fuel giving decreases.

At rupture of an alarm wire of DKK ECU establishes a code of malfunction 13. In case of constant low or a high voltage of signal ДКК the code of malfunction 44 or 45 is established accordingly. Codes 44 and 45 can be established also at malfunctions of system of injection of fuel.

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The prevention

ДКК it is supplied by constantly fixed wire with a socket on the end. It is forbidden to disconnect a wire from ДКК. Socket or wire damage will lead to gauge refusal.

It is necessary to show care at the reference with ДКК. On электричес a clod a socket and in a crack for access of atmospheric air there should not be a greasing, a dust etc. It is not necessary to apply any solvents to gauge cleaning. It is necessary to be careful of falling and the rough reference with ДКК.

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To remove or disconnect

1. The GAUGE of CONCENTRATION of OXYGEN. The MOMENT of the INHALING of 41 Nanometers

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The prevention

Dismantle ДКК can be complicated, if engine temperature more low 48 With.

The appendix of the big twisting moment can lead to damage of a carving nest to the final pipeline or an exhaust pipe.

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PERFORMANCE ORDER

1. A negative wire of the battery. 2. An electric socket. 3. Cautiously to turn out ДКК. The prevention On carving ДКК it is put special противопригарный structure which consists of a liquid graphitic basis and наполнителя in the form of small glass balls. While in service the engine the basis burns out, but glass balls remain and facilitate вывертывание ДКК. New ДКК or the gauges delivered as spare parts, already have it антипригарное a covering. If демонтиро by bathroom ДКК it is for whatever reasons established in the Engine repeatedly, it is necessary to put on a carving антипригарный structure.

To establish or attach

PERFORMANCE ORDER

1. To put on a carving антипригарный structure P/N 5613695 or similar to it. 2. To screw ДКК in a nest. To tighten ДКК the moment of 41 Nanometers. 3. An electric socket. 4. A negative wire of the battery.