p0139

Asked by May 11, 2016 at 08:50 PM about the 2011 Honda Insight Base

Question type: Maintenance & Repair

my 2011 honda insight has Check Emission System lamp.
Firestone said it is code p0139 that I may need to spend $3-400.

Any suggestion?

1 Answer

13,345

That's the 02 (heated exhaust gas sensor) helps control the air fuel ratio for the ideal 14.7 stoichiometric mix better fuel economy! performance too be sure the upstream sensor is changed.. parts about $100

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