Question about 2004 Toyota Sienna

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Po430 error code what is it

What does this mean

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Code 430 is for a problem with the catalytic converter on bank two.
It means the computer can not tell if the cat is working or not based on the readings from the O2 sensors.
The sensors and the cat would need to be tested.

Posted on Jan 10, 2013

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Posted on Jan 02, 2017

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Code po430 2007 trailblazer ss 6.0 engine light cam on why?


Code po430 is your O2 downstream sensor on your right bank telling you that you either have a problem with your catalytic convertor ot possibly your O2 sensor or wiring are bad.

Oct 26, 2015 | Cars & Trucks

1 Answer

What does a po430 code mean on a mercury cougar


EXHAUST RELATED ERROR CODES

There are 711 possible PO generic DTC error codes. Only 7 of the 711 codes are exhaust related.

PO401: Insufficient EGR Flow

PO402: Exhaust Gas Recirculation (EGR) Excessive Flow Detected

PO410: Secondary Air Injection System Malfunction

PO420: Catalyst System Efficiency Below Threshold (Bank 1)

PO421: Warm-Up Catalyst Efficiency Below Threshold (Bank 1)

PO430: Catalyst System Efficiency Below Threshold (Bank 2)

PO431: Warm-Up Catalyst Efficiency Below Threshold (Bank 2)

THINGS TO ASK YOURSELF OR YOUR CUSTOMER

Have there been any driveability or performance issues with the vehicle, have there been any recent repairs or tune-up work performed, if so was the check engine light reset and were the codes recorded on previous repair orders.

Do not rely on scan tool data alone. In most applications, the customer will have the check engine light reset prior to repair. If the original cause of converter failure is intermittent, only the catalyst failure code may show up

Nov 04, 2012 | Cars & Trucks

1 Answer

Po430 code on nissan sentra/ also stalls and restarts


The easiest way to do that is to go to your auto parts store and ask for a hanes manual for your make and model it costs 20 to 30 dollars but in the long run any problem you incounter with your vehicle it will give you detailed instructions on how to fix it. It also includes the error codes for for vehicle. Hope this helps.

Aug 09, 2012 | 2002 Nissan Sentra

1 Answer

What do these codes mean ? po430 po420 po306 for mercury cougar 1999


P0430 code is(catalyst efficiency below threshold on bank 2)
P0420 code is((catalyst efficiency below threshold on bank 1)
P0306 code is(cylinder 6 misfire detected)

Dec 13, 2011 | 1999 Mercury Cougar

1 Answer

Error code p0340 i,m haiving egniton truble?


po430 is catalyst efficiency below threshold ( bank 2 ). in most cases its a worn out convertor. po430 -possible causes
The catalytic converter is no longer functioning properly
An oxygen sensor is not reading (functioning) properly
There is an exhaust leak, good-day !!

Jul 15, 2011 | 2003 Chrysler PT Cruiser

2 Answers

Hi on my nissan primera 2002 1.8 i have pluget in launch and the error is PO430 would you discribe what das it mean? Regards Adam


P0420 TW (Two-Way) Catalyst System, Bank 1
P0430 TW Catalyst System, Bank 2 .
most likely a new catalytic converter.

Thanks. keep updated for any more query.you can rate this solution and show your appreciation.

Sep 28, 2010 | Nissan Pulsar Cars & Trucks

1 Answer

Po420 bank 1 and po430 bank 2 error codes


sounds like O2 sensors to me. I havent changed one on a mustang yet but I havent had any trouble with any others that I have done, they screw in like a spark plug but you will need a special tool, I hope this helps you.

May 13, 2010 | 2007 Ford Mustang GT California Special...

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Check Engine Light was came up with code po430.


its going to be either an o2 sensor(bank 2) or a catalytic converter

Jan 13, 2010 | 1997 Ford Thunderbird LX

1 Answer

1998 chevy 1500 with a 5.7 has engine code of po430


hi your code says u have got a bad catalytic converter

Nov 18, 2009 | 1998 Chevrolet K1500

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