P2424 - HC Adsorption Catalyst Efficiency Below Threshold Bank 2

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • HC adsorption catalyst (under floor)
  • Exhaust tube
  • Intake air leaks
  • Faulty Fuel injector
  • Fuel injector leaks
  • Faulty Spark plug
  • Improper ignition timing

Possible symptoms

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

P2424 Description

The Engine Control Module (ECM) monitors the phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal.

The phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal becomes small as the HC adsorption catalyst (under floor) is deteriorated.

When the phase gap between heated oxygen sensor 2 signal and heated oxygen sensor 3 signal approaches a specified limit value, the HC adsorption catalyst (under floor) malfunction is diagnosed.

OBDII Code P2424 - HC Adsorption Catalyst Efficiency Below Threshold Bank 2 - AutoCodes.com

P2424 Information for specific makes

  • P2424 DODGE HC Adsorption Catalyst Efficiency Below Threshold Bank 2

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Related Information

P2424 Comments

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