Engine light with under boost code.

[Flyboy7]

Bought 2020 cummins 2500. 4 months in have had repeated check engine lights with underboost code. Smoke tests, sensor replacements, and all FCA mechanical checks have been performed. Light has reset itself twice prior to getting back to dealer. Uconnect for some reason is also not sensing the fact that the light is coming on and a code is being thrown. Has anyone had any experience with this? If so any possible solution/information? First time light came on was around 600 miles. Current 4 months in with about 3000 miles on vehicle and this has happened 4 times. Vehicle is 100% stock.

 

[RamCares]

Bought 2020 cummins 2500. 4 months in have had repeated check engine lights with underboost code. Smoke tests, sensor replacements, and all FCA mechanical checks have been performed. Light has reset itself twice prior to getting back to dealer. Uconnect for some reason is also not sensing the fact that the light is coming on and a code is being thrown. Has anyone had any experience with this? If so any possible solution/information? First time light came on was around 600 miles. Current 4 months in with about 3000 miles on vehicle and this has happened 4 times. Vehicle is 100% stock.

We are sincerely sorry for the trouble you've experienced during your new vehicle ownership, @Flyboy7. We would like you to know that our team is available to you for support during these situations. Please do not hesitate to send us a private message for further assistance alongside your dealer services!

Kathryn
Ram Cares

 

[yoda]

There is a PCM flash that came out a couple a days ago for that concern.
Bring it to your dealer and see if it applies to your truck

 

[Flyboy7]

There is a PCM flash that came out a couple a days ago for that concern.
Bring it to your dealer and see if it applies to your truck

They told me there is an ETC relearn that supposedly fixes it that came from their regional guy. This was yesterday. They didn’t mention a PCM flash.