smog test measures - poor tuning?

smog test measures - poor tuning?

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twobone

Original Poster:

123 posts

156 months

Wednesday 26th October 2016
quotequote all
Hi
I just had my Canadian smog test done. In looking at 2 measures, they seem to be pointing to excessive rich mixture. At 2500 RPM the CO was measuring just under 2.0 when previous it was under 0.3. The other measure, I think hydrocarbon was showing 289 when I think normal is below 100. While it may still pass the test once I register my car as a grey market car, I assume this points to a tuning issue. Suggestions?