p0430

So several months ago I had the CEL & P0430 catalytic converter bank 2 code. After a few months I changed the spark plugs (I was at 145k & knew I was overdue for a while) and after a few days the CEL went out by itself. This was about 1 month ago. It's time to renew the inspection, so just to...

Greetings All, Unfortunately I just had my CEL come on. When I read the code with my code reader(its an Actron CP9580A), it get a P0430 "Catalyst System Efficiency Below Threshold Bank 2". I was not sure if my code reader was 100% on imports like RR's because it does not say it is on their...

My 2008 Range Rover HSE is throwing codes P0420 and P0430. It appears that I may need to replace the catalytic converters. Has anyone used the Magna Flow universal high flow catalytic converters. This is a more cost efficient option than the dealers $3,000 quote.

"Catalyst System Efficiency Below Threshold (Bank 2)" Hello, I have cleared this code twice, but it came back again today. Has anyone any experience with this? TIA

Hi All, Has anyone experienced P0430 code before? The code seems to indicate cat efficiecy low bank 2 and could indicate bad o2 or even cats. I have 35k miles on the car so I didn't think I would have to replace cats this soon. Any thoughts? For grins, I added techron fuel injector...