2025 RAM 1500 BIGHORN 3.0 I HURRICANE twin-turbo, SO, 420HP - check engine light

[v8440]

Lawyer was my fix. Well, that and a new rcsb f150, from which I've had zero problems so far. Making two truck payments sucks, but I don't worry about whether the truck is going to **** the bed on me just driving across town.

 

[Brahmajoe]

Can you post an exhaust clip? What did you go with?

 

[oneurt]

Thought I would add to the Check engine light delight! 1100KM 680 Miles. Pulled the code and it is showing P0420 Catalyst System Efficiency Below Threshold (Bank 1). Taking this into the dealership later this week, it hasn't affect the performance of the truck. But still really frustrating.

 

[v8440]

That will be interesting. I'm guessing either it will turn out to be an oxygen sensor gone bad or the catalytic converter in question gone bad.

 

[OLLIECB]

Thought I would add to the Check engine light delight! 1100KM 680 Miles. Pulled the code and it is showing P0420 Catalyst System Efficiency Below Threshold (Bank 1). Taking this into the dealership later this week, it hasn't affect the performance of the truck. But still really frustrating.

Yeah, P0420 Catalyst System Efficiency Below Threshold (Bank 1) is new. I havent seen that on here yet. Welcome to the chaos...hopefully you get a quick fix.