I just bought a DC4 last week and the check engine light went on. I checked the codes and it was a 72 and a 74 which is random miss fires. The second problem is that the oil light flashes after the engine comes to operating temperature. It would turn off at random times or it would flicker. I just changed the oil 2 days ago and the problem is still there. I need some help on what i should do. Thanks!!

 

anyone? need some help.