Quote:
Originally Posted by serialk11r
The reason the engine runs rich right after starting is because the O2 sensors aren't up to temperature and thus the engine doesn't actually know exactly what stoichiometric is. After 15 seconds the O2 sensors start working and what goes in is what goes out.
The sensors already have heating elements, and warming up the air isn't going to make things any faster.
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Yeah, I was wondering about it.
It might factor in intake air temperature, in which case it does matter.
Once the O2 sensors work and the engine is still cold it will certainly matter.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
  lifetime FE over 0.2 Gmeter or 0.13 Mmile.
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