If you go to page 11 on this, it shows the DPF is the 3rd and final component on your exhaust. If you look at the diagram on either page 14 at the bottom, which is described on page 15, it says that the sensor you are looking for is after the DPF, near the elbow in the exhaust where it goes over the rear axle. Hope this helps.
A forum community dedicated to Chevy Colorado Diesel owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!