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Engine code po430 - 2004 Lexus LS 430

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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

Check engine comes on after 400 miles fault code PO430 you can erase the fault code drive it will come back on after 400 miles same code.


Yes it will come back on an probably before 400 miles > You need to have it diagnosed to see if O2 sensor is bad or the catalytic converter is ! http://www.obd-codes.com/p0430

Aug 31, 2015 | Cars & Trucks

1 Answer

Engine light on give me code po430


A code P0430 may mean that one or more of the following has happened:
1. The catalytic converter is no longer functioning properly
2. An oxygen sensor is not reading (functioning) properly
3. There is an exhaust leak


Possible Solutions:

First, inspect for exhaust leaks.
Next step is to measure the voltage at the oxygen sensor on Bank 2. In fact, it would be a good idea to test each oxygen O2 sensor while you're at it.
One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.


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Mercedes Benz MB Star C3

Dec 20, 2012 | Cars & Trucks

1 Answer

Got a po430 code where will i find 02 sensor on nissan almada


The are in the exhaust system. You will need to know if it's bank 1 or 2 & sensor 1 or 2 in that bank.

Nov 09, 2012 | Chrysler PT Cruiser 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

I have a po430 code bank 2 what 02 sensor is it?


P0430 is a catalytic converter inefficiency code for bank 2.

You didn't list a year make and model but I do see you have a GM. It is not an O2 sensor. It is the catalytic converter. You can confirm this by watching O2 data with scan tool. If the downstream O2 sensor switches simular to the upstream than the Cat is no longer doing its job.

Bank 1 always refers to the same side of the engine as the number 1 cylinder. Bank 2 is the opposite side. again without a year make and model that is about as detailed as I can get.

Let me know if you have any questions and thank you for using fixya.com.

Jan 25, 2012 | Chevrolet 1500 Cars & Trucks

3 Answers

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

1 Answer

Codes p1145 po430 p0440 p0305 wont pass emissions


Have the compression checked....Hook a vacuum guage to the engine...This should give you a good idea of how much life is left in the engine.....

Apr 12, 2009 | 2001 Nissan Pathfinder

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