Engine P0138 fault code - Civinfo
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post #1 of 1 (permalink) Old 2nd February 2018, 19:02 Thread Starter
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P0138 fault code

Hello everyone!Did anyone ever had this fault code on R18 engine?It refers that the second O2 sensor has high voltage output.It appeared after the installation of the OEM catalyst and exhaust.

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Last edited by coyote80; 2nd February 2018 at 19:07.
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  Civinfo > 8th Generation Euro Honda Civic (2006 - 2011) > Bugs, faults and irritations (8G)

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