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So it had a vacuum leak coming from the EGR valve it was stuck open. I Replace the EGR valve and no more leaks. Car is still misfiring and I'm getting some code of p0430. Something to do with bank2 catalytic converter isn't performing properly. I don't want to replace the 400$ cat and the misfire still be there.. What should I do

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I swear I fix one code and than another pops up lol

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I'd probably just take it in. Cat codes could either be your cat being melted from misfired gas, or an o2 sensor, but if your just throwing parts at it then 400 might be cheap.

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Well I did take it in they b said the 02 sensor is bad and also the cat. But my thing is I don't want to replace the cat if I didn't fix the misfire.. Is it safe to drive with a bad cat/02 senaor

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No, it isn't but see my reply in your other post.  Please don't create duplicate threads.

 

I'm closing this one now.  Any further discussion can be continued in the other post.

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