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Old 05-10-2010, 11:14 PM   #1
thatmrb
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Failed Smog in CA

Hey guys
Went to the smog shop today. Unfortunately i didn't pass. The smog tech said I only failed in 1 area and that is the 15MPH test. He said I barely failed, every other category No problem. I asked him what he think the problem might be he said he thinks EGR valve but he wasn't sure. Any ideas or solution?

I don't really know what these number mean. maybe a smog tech here might know


Test
15mph

RPM
1861

%CO2
MEAS
11.4

%O2
MEAS
5.2

HC ( PPM )
MAX, AVE, MEAS
108, 45, 17

CO (%)
MAX, AVE, MEAS
0.80, 0.18, 0.00

NO ( PPM )
MAX, AVE, MEAS
1166, 427, 1473
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Old 08-15-2021, 01:31 PM   #2
PederY2K
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Re: Failed Smog in CA

Your vehicle NO (Nitrous Oxide) emission exceeds the set standard. NO is a by product of gasoline combustion, and high number indicates a mixture issue. The other numbers look ok. Possible issues include low compression, a carburation/injection system problem, a vacuun leak, etc.
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