P1138

HO2S Insufficient Switching Sensor 1

DTC P1138, sometimes indicated as P113800 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing ho2s insufficient switching sensor 1.

  • P1138: HO2S Insufficient Switching Sensor 1
  • P1138 00: Heated oxygen sensor (HO2S) 2, bank 1 - signal malfunction

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • 0061 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
    MERCURY: Issue of a perceived lack of engine braking and malfunction indicator lamp (mil) illuminated with a false diagnostic trouble code (dtc) P1138 stored in memory may occur on some vehicles . *mjs
  • 99125 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
    MERCURY: Information pertaining to lack of engine braking with diagnostic trouble code (dtc) P1138 present during key on engine running (koer). *tt
Consumer Complaints for this DTC



2005 NISSAN SENTRA with 75150.0 miles

On june 20, 2013 i brought my 2005 Nissan Sentra into curry Nissan in yorktown hts,ny 10598 because my check engine light went on saying it was my swirl valve part # 75150 code P1138 . They charged me $110.00 to update my engine ecu as per tech bulletin . On nov. 20th my check engine light went on again and i brought it to the nearest service station and was once again told that it was the same code for the swirl valve and that i was to take it to Nissan.. I was lucky enough that this problem did not cause an accident but am i expected to have this happen every 5 or 6 months? Please advise me if this is a recall.
ENGINE,

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