FWIW, I had to take my wife's new 2012 Elantra in for a smog test, as we purchased it out of state. It passed, of course, being a new car. However, the low speed HC results were surprisingly high for a new car, according to the smog test guy. I didn't want to waste gas warming up the car to drive it to the test station, so that may partially explain the relatively high HCs.
Following are some photos of the smog testing process:
Dyno support plate between roller wheels being lowered.
Low speed test being run. Operator keeps car speed/rpms between upper and lower lines.
Transition to higher speed test has just been accomplished, and is shown on test equipment.
Medium engine speed test segment.
End of test.
__________________
Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
