Reply To: Random misfire on Acura – and seems mysterious

[ms2000]

Thank you for being spot on.

There was air leak around the IACV – M/c fixed it. Now its on Rich condition.

Last yr, AC would not work on idle – it turned out to be IACV was clogged. It was cleaned and everything worked fine.

O2 sensor, Plugs, are new.
Thoughts?