Inspect the crankshaft position sensor ().

The air fuel ratio sensor has the characteristic of providing output voltage which is proportional to the air-fuel ratio. The air fuel ratio sensor output voltage* is used by the ECM to control the air-fuel ratio.

To detect atmospheric pressure, the built-in atmospheric pressure sensor in the ECM is used. Using the atmospheric pressure, the ECM corrects the injection volume, timing and duration, and adjusts the common rail internal fuel pressure in order to optimize engine combustion.

The ECM detects combustion deterioration for a specific cylinder.

Refer to DTC P0031 ().

Connect the GTS to the DLC3.

Refer to DTC P2120 ().

The accelerator pedal position sensor is mounted on the accelerator pedal and detects the opening angle of the accelerator pedal. Since this sensor is electronically controlled with Hall-effect elements, accurate control and reliability can be obtained. It has 2 sensors to detect the accelerator position and a malfunction of the accelerator pedal position sensor.

Refer to DTC P200C ().

The exhaust fuel addition injector assembly is mounted on the exhaust port of the cylinder head, and low pressure fuel is supplied to the injector assembly by the feed pump in the fuel supply pump assembly. This injector adds fuel according to a control signal from the ECM.

This injector assembly is used for two different controls: PM forced regeneration and PM reduction.