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OBD2-OBDII Codes | Engine-Codes.com

P0430

P0430 - Catalyst System Efficiency Below Threshold Bank 2

Possible causes
- Three way catalyst converter Bank 2
- Exhaust tube
- Intake air leaks
- Fuel injectors may be faulty
- Fuel injector leaks
- Spark plugs may be faulty
- Improper ignition timing
- Engine Control Module (ECM)
Tech notes
As the code description implies the P0430 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0430 code is combined with other codes, try fixing the other codes first.
When is the code detected?
- Three way catalytic converter Bank 1 does not operate properly.
- Three way catalyst converter Bank 1 does not have enough oxygen storage capacity.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0430 Description
The Engine Control Module (ECM) monitors the switching frequency ratio of heated oxygen sensors 1 (front O2 sensor) and heated oxygen sensors 2 (rear O2 sensor).
A three way catalyst converter (Manifold) with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase.
When the frequency ratio of heated oxygen sensors 1 and 2 approaches a specified limit value, the three way catalyst malfunction is diagnosed.
OBDII Code P0430 - Catalyst System Efficiency Below Threshold Bank 2 - Engine-Codes.com
P0430 For specific makes
P0430 INFINITI
P0430 NISSAN
P0430 TOYOTA
P0430 LEXUS
P0430 FORD
P0430 BUICK
P0430 HONDA
P0430 ACURA
P0430 BMW
P0430 CHRYSLER
P0430 DODGE
P0430 JEEP
P0430 HYUNDAI
P0430 KIA
P0430 MAZDA
P0430 MITSUBISHI
P0430 AUDI
P0430 VOLKSWAGEN
P0430 CADILLAC
P0430 CHEVROLET
P0430 GMC
P0430 PONTIAC
P0430 SATURN
P0430 JAGUAR
P0430 2002 NISSAN ALTIMA SEDAN
P0430 2003 NISSAN ALTIMA SEDAN
P0430 2004 NISSAN ALTIMA SEDAN
P0430 2005 NISSAN ALTIMA SEDAN
P0430 2006 NISSAN ALTIMA SEDAN
P0430 2002 NISSAN SENTRA
P0430 MERCEDES-BENZ
P0430 2003 INFINITI G35
P0430 2004 INFINITI G35
P0430 2005 INFINITI G35
P0430 2006 INFINITI G35
P0430 2004 NISSAN MAXIMA
P0430 2005 NISSAN MAXIMA
P0430 2006 NISSAN MAXIMA
P0430 2007 NISSAN MAXIMA
P0430 2008 NISSAN MAXIMA
P0430 2008 NISSAN ALTIMA SEDAN
P0430 2009 NISSAN ALTIMA SEDAN
P0430 2010 NISSAN ALTIMA SEDAN
P0430 2011 NISSAN ALTIMA SEDAN
P0430 2012 NISSAN ALTIMA SEDAN
P0430 1997 FORD F150
P0430 1998 FORD F150
P0430 1999 FORD F150
P0430 2000 FORD F150
P0430 2001 FORD F150
P0430 2002 FORD F150
P0430 2003 FORD F150
P0430 2001 TOYOTA HIGHLANDER
P0430 2002 TOYOTA HIGHLANDER
P0430 2003 TOYOTA HIGHLANDER
P0430 2004 TOYOTA HIGHLANDER
P0430 2005 TOYOTA HIGHLANDER
P0430 2006 TOYOTA HIGHLANDER
P0430 2007 TOYOTA HIGHLANDER
P0430 2007 NISSAN SENTRA
P0430 2008 NISSAN SENTRA
P0430 2009 NISSAN SENTRA
P0430 2010 NISSAN SENTRA
P0430 2011 NISSAN SENTRA
P0430 2012 NISSAN SENTRA
P0430 2006 TOYOTA CAMRY
P0430 2007 TOYOTA CAMRY
P0430 2008 TOYOTA CAMRY
P0430 2009 TOYOTA CAMRY
P0430 2010 TOYOTA CAMRY
P0430 2006 FORD FUSION
P0430 2007 FORD FUSION
P0430 2008 FORD FUSION
P0430 2009 FORD FUSION
P0430 2010 FORD FUSION
P0430 2011 FORD FUSION
P0430 2012 FORD FUSION
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