I e had this truck for about 5 months but I just drive around town so far. I’d like to pull a small trailer but I noticed it is sometimes sluggish from take off. Started to take off faster lately to test things out. At one point last week I got a check engine. Engine would dog out then sometimes surge to the power I’d expect from a 6.2. Codes are 101, 172 and 175 Over all it has seemed to run pretty well. Ideas?