Hi Guys
Code for Cat is P0430
I have a 2012 ody and just a few months ago at 144k the engine started misfiring. Did some research found it was "faulty piston rings" (burning oil and fouling plugs) brought it to the dealer and after a month-long hassle, I got it fixed under warranty. Now 2k later the engine light came on and I ran the codes and it is the CAT! I think it was the burning oil that messed it up. I did some more research on the "faulty piston rings and found it is actually the VCM that causes the problem but Honda won't admit to that. The cost of the CAT is about $1300CAD.
1 Should I try and get it covered by Honda? (the warranty for the CAT is 8 years, 130k & I'm at just over 8 years, 146k)
2Or sell the car?
3Or replace the CAT and sell it?
4Or replace the CAT and get a VCM muzzler to stop the VCM from coming into use and pray that there isn't too much damage already done. **I plan on doing some long road trips in a few months**
Was it the American Honda Financial that finally paid for your repair under warranty? Mine is just 5.5 years old and has 63k miles and just got the same problem. Honda Warranty says, "not covered because carbon build up is excluded." I'm furious.
It may very well be the oil burning that caused the catalyst to fail. An inefficient catalyst will not damage the engine, unless it is really clogged up and causes severe back pressure in the exhaust manifold. Check the voltage for the downstream O2 sensor. It should be at a steady 0.45 volts. It could just be a bad sensor from all the oil burning.
