Code P0430

[Ray Brown]

My CEL came on today and read the codes. I got the code P0430. I believe of what I can understand what I read that it might be my o2 sensor. Possibly bank 2 rear. Any ideas on this? Could this be the cause of my rpm's and engine jerking and a squeal from under the hood during acceleration sometimes? All help is greatly appreciated.

 

[Yardsale]

Could this be the cause of my rpm's and engine jerking and a squeal from under the hood during acceleration sometimes?

Maybe the rough running, but typically this would cause rough idle when cold. The squeal is more likely the belt.

 

[Ray Brown]

Thanks for your help. I am going to start with the o2 sensor. Do you know if bank 2 is the drivers side or passenger side. I know that downstream is after the cat.

 

[Yardsale]

Quite simply, Bank 1 refers to the side of the engine that has the #1 cylinder. Bank 2 is the opposite side of the engine.



It's not correct to simply state that driver's side is always cylinder #1 or vice versa. Even on cars with a transverse mounted engine, bank #1 is referring to downstream from the side of the engine with cylinder #1.

Bank 2 is driver side.



3 | 6

2 | 5 Driver

1 | 4

Front

 

[Vic Sorlie]

As Yardsale says, Bank 2 is driver's side. Are any other codes present besides P0430?

 

[Ray Brown]

Thank guys. You are a great help. Hopefully my weekend will run smooth.

 

[Austin Sewell]

IIRC there's only 3 02 sensors, 1 upstream of the precats in each bank and then a single downstream below the main 2-in-1 out cat.