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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2007 Toyota Corolla Question: Check engine light came on (code P0138) but disappeared a day later.
Answer #1dandd August 01, 2011, 20:33Master
Take it back to the dealership and tell them about the problem, maybe the computer-re-flash did not go well.
Answer #2chinasinoy August 02, 2011, 03:28Journeyman
for this code, you can try this
Replace O2 sensor.
Repair short to battery voltage in o2 sensor signal circuit.
Answer #3DR.RECO from Reco's Renches, August 02, 2011, 16:40Journeyman
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.