M-what
09-30-2006, 02:15 PM
After many frustrations, my baby finally passed.
My car always passed with flying colors for HC at speed, but failed at the idle emission - actually you can smell it. Lot of that I think was due to the rough idle 700/800rpm. It failed last time even with a full tune up, oil change, intake cleaner, ICV cleaning, TB cleaning & valve adjustments. This time changed the O2 sensor, and ditched the KN filter for stock. After driving for awhile, I can still smell the nasty exhaust at idle. So cleaned ICV & TB again. I was looking at the TB and tried to figure out a way to raise the idle. There is a little bolt that adjusts the closed position of the TB. The thottle was opened to where it idled at 1000 rpm and the bolt was tightened. Those that know more about TB can chime in. The HC went from 880 to 40. Now I can spend more time on other more fun things - waxing the car before it gets cold.
My car always passed with flying colors for HC at speed, but failed at the idle emission - actually you can smell it. Lot of that I think was due to the rough idle 700/800rpm. It failed last time even with a full tune up, oil change, intake cleaner, ICV cleaning, TB cleaning & valve adjustments. This time changed the O2 sensor, and ditched the KN filter for stock. After driving for awhile, I can still smell the nasty exhaust at idle. So cleaned ICV & TB again. I was looking at the TB and tried to figure out a way to raise the idle. There is a little bolt that adjusts the closed position of the TB. The thottle was opened to where it idled at 1000 rpm and the bolt was tightened. Those that know more about TB can chime in. The HC went from 880 to 40. Now I can spend more time on other more fun things - waxing the car before it gets cold.