Looking for some help. Took my new to me - 2017 Suburban to get inspected. I did not let it heat up enough and it failed the inspection. Mechanic told me to drive it for a few weeks and then bring it back. I did that made sure the Truck was warm and drove it for about an hour before I brought it in to be re-inspected. I failed again. According to the data on the sheet from the test it says CATALYST - NOT READY, OXYGEN SENSOR - NOT READY. This new mechanic who re-tested it said I need to drive for 1 hour for the computer to reset...is this true? Any suggestions?
thanks in Advance!
thanks in Advance!