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2007 Toyota Corolla Question: Check engine light came on (code P0138) but disappeared a day later.

 

Question

rafieagle, West Hempstead, NY, August 01, 2011, 12:45
 Rookie

Few months ago due to recall and check engine light the ECM control was replaced by the dealership. Two days ago check engine light came on; when checked it showed the code P0138 but the light disappeared a day later. Please help me with this.

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  • Answer #1

    August 01, 2011, 17:33
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     Master

    Take it back to the dealership and tell them about the problem, maybe the computer-re-flash did not go well.

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  • Answer #2

    August 02, 2011, 00:28
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     Journeyman

    for this code, you can try this
    Replace O2 sensor.
    Repair short to battery voltage in o2 sensor signal circuit.

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  • Answer #3

    DR.RECO from Reco's Renches, August 02, 2011, 13:40
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     Journeyman

    Hello i would go back to the dealer right away and have them recheck the recall work performed and the re-programing of the computer.HAVE A BLESS DAY from DR.RECO.

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