Pajero 4x4 Off-Road Club

Приветствую всех!

образовалась некоторая проблема, помогите разобраться:

симптомы: горит SES, "подрагивает" на холостых, "тупит" и значительно увеличился расход.

при диагностике обнаружились следующие ошибки:
Ошибки по ДВС: 0174, 0154, 0151
мастера, который мог бы сказать что это на сервисе не оказалось

на форуме нашел описание первых двух:
P0154 (4) Left Front HO2S Circuit No Activity Detected (Bank 2, Sensor 1)
P0174 System Too Lean (Bank 2)

а последняя, 0151 так и осталась тайной..

подскажите, плиз, что означает последняя ошибка и с чего начинать ремонт?

спасибо!

Jekson! писал(а):а последняя, 0151 так и осталась тайной..

Какой "тайной" - военной

DTC P0151: LEFT FRONT HEATED OXYGEN SENSOR (HO2S) CIRCUIT LOW VOLTAGE (BANK 2 SENSOR 1)
Circuit Operation
A voltage corresponding to the oxygen concentration in the exhaust gas is sent to the PCM (terminal No. 71) from the output terminal (terminal No. 4) of the left bank heated oxygen sensor (front).
Terminal No. 2 of the left bank heated oxygen sensor (front) is grounded with PCM (terminal No. 57).
Technical Description
The left bank heated oxygen sensor (front) detects the concentration of oxygen in the exhaust gas, converts that data to voltage, and sends it to the PCM.
When the left bank heated oxygen sensor (front) begins to deteriorate, the heated oxygen sensor signal response also deteriorates.
The PCM varies the air/fuel mixture to make it leaner and richer, and checks the response speed of the left bank heated oxygen sensor (front). In addition, the PCM also checks for an open circuit in the left bank heated oxygen sensor (front) output line.
DTC Set Criteria
After engine starts, left front HO2S signal is 0.2 volt or less for 3 minutes or more.
Engine coolant temperature is more than 169°F (76°C).
Engine speed is more than 1200 RPM.
Volumetric efficiency is more than 25 percent.
Volume airflow sensor output frequency is 100 Hz or more.
At least 20 seconds have passed since fuel shut off control was canceled.
After the ignition switch is turned ON, the changes in the output voltage of the left bank heated oxygen sensor (front) is lower than 0.078 volt. Monitoring time: 10 seconds.
Code will set when making the air/fuel ratio richer, (15 percent for 10 seconds), does not result in raising the heated oxygen sensor (front) output voltage beyond 0.2 volt. Monitor runs only once during drive cycle.

Probable Causes
Left bank heated oxygen sensor (front) failed.
Short circuit in left bank heated oxygen sensor (front) output line.
PCM failed.


Всё указывает на замену левого верхнего лямбд-зонда

SNOOPER

спасибо за оперативный ответ!