Let the troubleshooting begin: The Teal Terror fails emissions
Living in Oregon, I have to bring my cars through emissions testing (DEQ or Department of Environmental Quality). I brought my Sidekick into DEQ for the test yesterday and, to my surprise, failed. My hydrocarbon levels, which were tested twice, were 324 and 395. Oregon's limit is 220 (measured in parts per million, or PPM). I never expected to fail with the recent tune-up I just did. However, it looks like there's more to this story.
According to the DEQ's sheet, this failure could be caused by a myriad of things including but not limited to a misfire, vacuum leak, EGR malfunction, spark timing, air pump not working, catalytic converter not working, worn vales/seals/guides/piston rings, fuel injection system malfunction, act of God, locusts, famine, alien invasion, or shear lunacy.
After some research, I'm leaning toward the catalytic converter and/or bad O2 sensor. Ah, let the troubleshooting begin.