- Member ID
- #2176
- Messages
- 166
- Reactions
- 135
- Likes
- 37
- City
- Haskell
- State
- NJ
- Country
- United States
- Vehicle
- 2016 Challenger Hellcat
Hello everyone.
I got the P121B code three days ago.
I got it while driving the car at normal speeds. I was actually merging onto a highway when it came on. I don’t think my driving style has anything to do with the CEL.
After doing some research I see that the code is for a malfunction in one of the Active Exhaust valves.
I went to the dealer this morning to see if what remains on my 5 year/ 60,000 mile power train warranty would cover this ......... it does not.
While I was there, I asked some basic questions about this particular code and they seemed to have a different opinion than what I’ve read during my research. They kept telling me that code was a “communication code”. They explained it as being an electrical issue.
After I mentioned to them that I thought it was an issue with the active exhaust valves they told me that was not the case. They even said that some people disconnect the active exhaust valves and don’t get a CEL.......... I know for a fact that claim is not correct. i left the dealership and I’m going to fix it myself.
2 questions for you guys.
1- is the P121B code actually an issue with the Active Exhaust Valves? Or am I wrong?
2- which of the two exhaust valves does this code refer to? Driver or passenger side?
if anyone has any leads on a website with good pricing on Mopar parts Let me know.
I know Steve white is a popular one, looking for more choices.
I got the P121B code three days ago.
I got it while driving the car at normal speeds. I was actually merging onto a highway when it came on. I don’t think my driving style has anything to do with the CEL.
After doing some research I see that the code is for a malfunction in one of the Active Exhaust valves.
I went to the dealer this morning to see if what remains on my 5 year/ 60,000 mile power train warranty would cover this ......... it does not.
While I was there, I asked some basic questions about this particular code and they seemed to have a different opinion than what I’ve read during my research. They kept telling me that code was a “communication code”. They explained it as being an electrical issue.
After I mentioned to them that I thought it was an issue with the active exhaust valves they told me that was not the case. They even said that some people disconnect the active exhaust valves and don’t get a CEL.......... I know for a fact that claim is not correct. i left the dealership and I’m going to fix it myself.
2 questions for you guys.
1- is the P121B code actually an issue with the Active Exhaust Valves? Or am I wrong?
2- which of the two exhaust valves does this code refer to? Driver or passenger side?
if anyone has any leads on a website with good pricing on Mopar parts Let me know.
I know Steve white is a popular one, looking for more choices.