emission questions
Richard J. Andrews
audinutt at excite.com
Thu May 13 03:38:01 EDT 2004
The recent emission test shows:
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Test Value CO x Litres: 0.16%
Test Value HC x Litres: 145ppm
Test Value NO x Litres: 3313ppm
1910rpm
DILUTION: 11.4%
Your vehicle Base Readings are CO (0.10%), HC (91ppm) n ad NO (2071ppm)
Base Reading x Engine Size = Test Value
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1. what are the SoCal test values? Will it pass the test?
2. if not, can I pay some kind of a one time fine and make it legal?
3. am I nuts? What would you do if you were in my shoes?
the NOX being over 3000 and the Hydrocarbons being so high I would think
the cat is not working..
a simple thermal test will tell you if I am correct. basically any muffler
shop should have a non contact thermometer..
the temp of the pipe should be at least 100 degrees hotter directly after
the cat than it is before it..
those readings look like they would fail to me.
check the cat and replace if needed...
tuneup might bring the HC's down a little, but the main smog device which
controls both is the Cat..
EGR valves ONLY help on Nox and I would be willing to bet it's fine (if it
even has one)
-richard
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