P0430 Nissan -

Question

I have read the Q/A about P0430, and I have heard more about the bank#2 Cat is the issue. I see these results after searching for P0430 code right at the top of this Q/A P0430. I don't know if others in the list needed to be replaced. Too many problems in the list and I don't have money to go for one after another. Please share the exact problem caused the P0430. Thanks.

Possible causes- Three way catalyst converter Bank 2
- Exhaust tube
- Intake air leaks
- Fuel injectors may be faulty
- Fuel injector leaks
- Spark plugs may be faulty
- Improper ignition timing
- Engine Control Module (ECM)

Read more: https://www.autocodes.com/p0430_nissan.html#ixzz2nBRcgyRZ

Answer 1

You dont have to replace everything in possible causes. If you have an intake leak from a disconnected hose or cracked hose you dont have to replace it you can just fix the hose if its not repairable than you have to replace it.

there is a 90% change that the catalyst converter is bad, if there is no other issues with the car.

also the problem is caused by using low octane fuel which will destory the catalyst converter in the long run or the car not running properly (like misfiring and etc)