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2-7-7-13-usloviya-zapominaniya-kodov-neispravnostejj.html
2.7.7.13. Conditions of storing of codes of malfunctionsEBU brings in memory Р0121 and includes a control lamp of malfunction of a control system of the engine in case of a mismatch between a signal of loading of the engine from the sensor of provision of a butterfly valve and a signal from the sensor of absolute pressure. This code shows that information on the provision of a butterfly valve and a consumption of the air, given out on EBU from the sensor of provision of a butterfly valve and the sensor of absolute pressure, does not correspond to the actual loading of the engine.
EBU brings the P0122 code in memory and includes a control lamp of malfunction of a control system of the engine, if a corner of opening of a butterfly valve during more than 0,2 with less than 2,1 ° in two cycles of driving. This code specifies that the sensor of provision of a butterfly valve or EBU define unusually small corner of opening of a butterfly valve. EBU brings the P0123 code in memory and includes a control lamp of malfunction of a control system of the engine, if a corner of opening of a butterfly valve during 0,2 with more than 105,4 ° in two cycles of driving. This code specifies that the sensor of provision of a butterfly valve or EBU define unusually big corner of opening of a butterfly valve.
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NOTE
The nominal rate of resistance at measurement on conclusions 1 and 3 sensors of provision of a butterfly valve is in limits of 1600-2500 Ohm.
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Check
Separate the electric socket of the sensor of provision of a butterfly valve.
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Fig. 2.246. The scheme of connections at check of the sensor of provision of a butterfly valve
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Check resistance on conclusions 2 ("mass" of the sensor) and 3 (a sensor food) the electric socket of the sensor (fig. 2.246). Nominal rate of resistance: 0,7–3,0 kiloohms
Attach an analog ohmmeter to conclusions 2 ("mass" of the sensor) and 1 (a sensor signal) the electric socket of the sensor.
Slowly moving a butterfly valve from the provision of idling to the provision of complete opening, watch smoothness of change of resistance in proportion to a corner of opening of a zaslonka.
At a resistance deviation from norm or its not smooth change replace the sensor of provision of a butterfly valve.
Moment of an inhaling of the sensor of provision of a butterfly valve: 1,5–2,5 N · m.
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