The ECM observes the pressure in the secondary air passage using the pressure sensor located on the air switching valve in the secondary air injection system. The sensor detects an exhaust pressure in the secondary air passage." property="og:description">
For Shop Owners

P2447 - Secondary Air Injection System Pump Stuck Off Bank 2

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3 What does this mean?

Possible causes

  • Air pump fuse
  • Vacuum hose
  • Air pump assembly
  • Faulty Pressure Sensor
  • Air pump harness is open or shorted
  • Air pump circuit poor electrical connection
  • Pressure Sensor harness is open or shorted
  • Pressure Sensor circuit poor electrical connection
What does this mean?

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2447 Description

To accelerate the activation of catalyst when warming up the engine, the air injection system pumps the secondary air to the exhaust manifold by pressure. The secondary air is supplied by the air pump and it is pumped to the exhaust manifold through the air switching valve. Open and close movement of the air switching valve is regulated by the Vacuum Switching Valve (VSV).The air pump and the air switching valve are observed by the Engine Control Module (ECM) and are used to detect malfunction in this system. The ECM monitors the secondary air injection system and detects malfunction using a pressure sensor located on the air switching valve.

The ECM observes the pressure in the secondary air passage using the pressure sensor located on the air switching valve in the secondary air injection system. The sensor detects an exhaust pressure in the secondary air passage.

OBDII Code P2447 - Secondary Air Injection System Pump Stuck Off Bank 2 - itimaster.ru

P2447 Information for specific makes

P2447 DODGE Secondary Air Injection System Pump Stuck Off Bank 2
P2447 LEXUS Secondary Air Injection System Pump Stuck Off Bank 2
P2447 TOYOTA Secondary Air Injection System Pump Stuck Off Bank 2

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P2447 Comments

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Any information is appreciated. Thanks
Repair Importance Level: 3
1=Low 2=Medium 3=High
Repair Difficulty Level: 3
1=Easy 2=Moderate 3=Hard

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