EXHAUST GAS PRESSURE SENSOR [SKYACTIV-D 2.2]

id0140z7256700

Exhaust Gas Pressure Sensor No.1

Purpose/Function

• Detects the exhaust gas pressure exhausted from the cylinder as basic information for mainly EGR control and boost control.

• Detects the exhaust gas pressure exhausted from the cylinder and sends to the PCM as an exhaust gas pressure signal.

Construction

• Exhaust gas pressure sensor No.1 is installed to the cylinder head cover with the bracket.

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• A semiconductor gauge has been adopted to the exhaust gas pressure sensor No.1 as the detecting element for detecting the exhaust gas pressure exhausted from the cylinder.

Operation

• Sends the signal, which fluctuates according to the exhaust gas pressure exhausted from the cylinder, to the PCM.

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Exhaust gas pressure sensor No.1 characteristic

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Fail-safe

DTC No.

Fail-safe function

P0470:00

P0471:00

P0472:00

P0473:00

•  Limits engine torque.

•  Inhibits the automatic DPF regeneration control.

•  Inhibits the manual DPF regeneration control.

•  Inhibits the EGR control.

•  Stops the G-vectoring control (GVC).

•  Limits the engine transaxle total control.

•  Inhibits the boost control.

DTC No.	Fail-safe function
P0470:00 P0471:00 P0472:00 P0473:00	• Limits engine torque. • Inhibits the automatic DPF regeneration control. • Inhibits the manual DPF regeneration control. • Inhibits the EGR control. • Stops the G-vectoring control (GVC). • Limits the engine transaxle total control. • Inhibits the boost control.

Exhaust Gas Pressure Sensor No.2

Purpose/Function

• Detects the difference in pressure between exhaust gas pressure before and after passing the diesel particulate filter as basic information for mainly diesel particulate filter control.

• Detects the difference in pressure between exhaust gas pressure before and after passing the diesel particulate filter and sends to the PCM as an exhaust gas pressure signal.

Construction

• Installed on the air hose bracket.

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• A piezoelectric element has been adopted to the exhaust gas pressure sensor No.2 as the detecting element for detecting the difference in pressure between exhaust gas pressure before and after passing the diesel particulate filter.

Operation

• Sends the signal, which fluctuates according to the difference in pressure between exhaust gas pressure before and after passing the diesel particulate filter, to the PCM.

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Exhaust gas pressure sensor No.2 characteristic

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Fail-safe

DTC No.

Fail-safe function

P244A:00

•  Limits the engine torque or the upper limit of the engine speed.

•  Inhibits the automatic DPF regeneration control.

•  Inhibits the manual DPF regeneration control.

•  Inhibits the EGR control.

P2454:00

P2455:00

P2456:00

•  Limits engine torque.

•  Inhibits the automatic DPF regeneration control.

•  Inhibits the manual DPF regeneration control.

•  Inhibits the EGR control.

•  Inhibits the boost control.

DTC No.	Fail-safe function
P244A:00	• Limits the engine torque or the upper limit of the engine speed. • Inhibits the automatic DPF regeneration control. • Inhibits the manual DPF regeneration control. • Inhibits the EGR control.
P2454:00 P2455:00 P2456:00	• Limits engine torque. • Inhibits the automatic DPF regeneration control. • Inhibits the manual DPF regeneration control. • Inhibits the EGR control. • Inhibits the boost control.