p0430 help

[omantank]

so i read that p0430 is catalyc blabla failure.. i have 4 oxy sensors, is there any way to know which one of the 4 is bad if thats the problem of course, unless its the cats itself. if the cats are the problems do any of you proud expy owners have any highflow cats to recommend me? thank you so much!!

 

[bedrck46]

Causes

A code P0430 may mean that one or more of the following has happened:
•The catalytic converter is no longer functioning properly
•An oxygen sensor is not reading (functioning) properly
•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.

 

[Boose]

If you know someone with a quality scanner, you can get real time O2 sensor readings while running the engine. If one is out of whack I'd start there.

 

[omantank]

ok thanks alot guys