Bought a new 17 off a lot. great deal being its already a year old. same day I purchased the truck the engine light came on. P2002 and P20EE. they told me it didn't get the new updates.. Great so 45 minutes later guess what same codes. Now they said it was the Particulate sensor. 45 minutes later today its back on again? Anyone else with this issue? almost seems like they are guessing at the problem.