Purchased my Colorado in July of 2017. Joined your site to find out if any one has had the same problem as I do. On Jan 28 of this year I had a emission code come up at 5200 km's. I took the truck in to find out what had happened. My dealer told me that a injector had failed and had also caused a injector line to fail (actually split the line from to much pressure). I'm now in a rental vehicle still waiting for new upgraded line to be made. Has anybody else had this same problem?