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Старый 06.04.2011, 12:51   #1617
GASCHE
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Цитата:
Сообщение от psyhosis Посмотреть сообщение
Давления то же не вижу.
Может по этому и вырезали
Цитата:
Сообщение от psyhosis Посмотреть сообщение
если его отключить, вылетает чек
Какая ошибка? К сожелению для вашего двигателя нет
Цитата:
Сообщение от СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 2AD-FHV
MONITOR DESCRIPTION
In order to detect abnormality in the DPNR*3 catalytic converter, the ECM monitors an exhaust gas temperature as well as a differential pressure of the exhaust gas. For monitoring the differential pressure, the ECM compares the upstream and downstream pressure of the DPNR catalytic converter. If the difference between the pressure is large, the ECM determines that the DPNR has become contaminated or is deteriorated, and illuminates the MIL.
Furthermore, the ECM monitors an increase in the exhaust gas temperature while the exhaust fuel addition injector adds fuel under DPNR catalyst regeneration. The exhaust gas temperature during the DPNR catalyst regeneration normally rises from approximately 300°C (572°F) to approximately 600°C (1,112°F) or higher. If the temperature does not rise even if a certain period of time has elapsed, the ECM interprets this as malfunction of the DPNR and illuminates the MIL.
Давление
Result:
Engine Speed (Vehicle is stop) | Differential Pressure (kPa) | Proceed to
3,000 rpm (No engine load) | Less than MAF rate (mass air flow rate) x 0.31 | A
3,000 rpm (No engine load) | More than MAF rate (mass air flow rate) x 0.31 | B
If the differential pressure is more than value of the intake air amount (MAF: g/sec.) multiplied by 0.31, DTC P2002 (Particulate Trap Efficiency Below Threshold [Bank 1]) will be present.
The standards for the differential pressure sensor are as follows:
Reference:
Condition | Differential Pressure Output | Sensor Condition
Ignition switch on (IG) | Approximately 0 kPa | Normal
Always | 3 kPa | Open or short circuit
3,000 rpm (No engine load) | Negative output | Incorrect arrangement of hose piping
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