Hello,

I recently bought a 2016 Accord Ex-L with about 115,000 miles. Recently, after driving it for about 75 miles, it died on me at highway speed. It immediately cranked and drove another 5 miles and died again. It did this about 10 times before I made it home. It was throwing a P0430 code so I figured it was the catalytic converter that was plugged up so I changed the cat for a new one. However, this did not fix it. It is still throwing the P0430 code and has since died twice while driving. Every time it dies, it has been after driving for about an hour. Do I need to change the pre-Cats? Could it be something else?

 

Sounds like the injectors are dumping too much fuel and bad O2 sensors.