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P0430 Diagnostic Trouble Code Discussion for October 2013

Catalyst System Low Efficiency (Bank 2)

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Trouble Ticket Help Requests for DTC P0430
Help Request Posted
2007 Chevrolet Silverado 1500 LTZ 5.3L MIL Lamp on VIN: 3GCEK13M27
P0430: Catalyst System Low Efficiency (Bank 2). ... p0420.they changed cat assy. code came back on.I got veichle with p0420 & p0430.cats tested cold.o2's switching/following fronts.checked,tune-up new.no vac.leaks,no exhaust leaks,02's in correct positions.f/press,ok.holds pressure.stft and long term fu...
October 07, 2013
2000 Jaguar XK8 4.0L MIL Lamp on VIN: SAJJA42C4Y
P0430: cat inefficency. trying to determine if the cat is bad seems its bank 2 which is drivers side as per my books
October 09, 2013
2005 Jeep Liberty Renegade 3.7L Misfire, MIL Lamp on VIN: 1J4GL38KX5
P0430: Catalyst Efficiency Below Normal (Bank 2). this jeep came in for check engine light on found cat to be bad and also has miss fire on number 4 cylinder.misfire is most noticeable at idle high way speeds you feel nothing.verified mis with scanner on number4.i swapped plugs and coil and injector to see if...
October 30, 2013