P0171 Смесь бедная (bank 1)
P0192 Низкий показатель датчика температуры топлива
Код Р0171 (система топливоподачи бедная).
Появление кода Р0171 может быть вызвано следующими причинами:
— негерметична система впуска;
— неисправна система топливоподачи;
— неисправен датчик кислорода;
— неисправен датчик массового расхода воздуха.
P0192 Датчик давления в топливном коллекторе неисправен (низкий уровень выходного сигнала, замыкание в цепи)
английское описание вот такое
The Fuel Rail Pressure (FRP) sensor is a diaphragm strain gauge device in which resistance changes with pressure. The electrical resistance of a strain gauge increases as pressure increases, and the resistance decreases as the pressure decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signal to the Powertrain Control Module (PCM) corresponding to pressure.
Strain gauge type sensors are consider passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow.
Voltage that is dropped across a fixed resistor in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The FRP sensor measures the pressure of the fuel near the fuel injectors. This signal is used by the PCM to adjust the fuel injector pulse width and meter fuel to each combustion cylinder.
Русский перевод - надо датчик смотреть
