Error codes when towing

[TheKim]

Hey all, long time lurker, first time poster -

Alright, so once in a while when pulling my trailer, and once actually without, I'll get an error code about the exhaust or some sensor.
Originally the dealer said it's not really an issue because it clears itself pretty quickly. However, it's almost every time now when towing, so I'm guessing I'll be taking it in.

Curious if others have seen these particular codes and what typically caused them.
I tried the search feature, but wouldn't you know it, not much about these specific errors came back.


Thanks y'all -
Hope everyone had a good Memorial Day weekend.

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[Valhalla]

have you pulled the codes with a OBD2 scanner? something that actually reads the software.

 

[TheKim]

have you pulled the codes with a OBD2 scanner? something that actually reads the software.

No, because I'm lazy, and didn't think of that

I'll check that in the morning, thanks for the suggestion.

 

[TheKim]

P0157

P007B

P0096

I've got an appointment for Tuesday, dealer buddy said it's likely an O2 sensor and should be same day.
The one for the error after the catalytic converter is interesting, but I guess it could be related?

 

[Valhalla]

Yes, bad upstream can cause bad downstream.

 

[TheKim]

Yes, bad upstream can cause bad downstream.

That was my thought as well.
The codes all cleared themselves today, but printed them out with their details to give the dealer for servicing.

It's all under warranty still, and I'm hoping it didn't cause any damage, especially since my engine build was right in the middle of the great 2021 dropped valve fiasco. 47k miles and still going, for now!

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