Subaru P1157 Lack Of HO2S22 Switch – Sensor Indicates Lean

Description

Possible causes
  • Pinched, shorted, and corroded wiring and pins.
  • Crossed sensor wires.
  • Exhaust leaks.
  • Contaminated or damaged sensor.

    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1157 Subaru OBD Code Description

    The downstream HO2Ss are forced rich and lean and monitored by the PCM. The test fails if the PCM does not detect the output of the HO2S in a calibrated amount of time.

    P1157 Subaru Information for specific makes
    P1157 Subaru ACURA< Subaru/span>
    P1157 Subaru BUICK Subaru
    P1157 Subaru CADIL SubaruLAC
    P1157 Subaru CHEVR SubaruOLET
    P1157 Subaru FORD
    P1157 Subaru GMC
    P1157 Subaru HONDA

    The OBD2 Code Information Be Applicable For Subaru:

    2013 Subaru WRX Concept,2013 Subaru Viziv Concept,2013 Subaru Outback,2013 Subaru Legacy,2013 Subaru Impreza,2013 Subaru BRZ,2012 Subaru XV,2012 Subaru Impreza,2011 Subaru XV Concept,2011 Subaru Outback,2011 Subaru Impreza,2011 Subaru Forester,2010 Subaru Legacy,2010 Subaru Impreza,2009 Subaru Impreza,2008 Subaru Impreza,2008 Subaru Forester,2006 Subaru Impreza,2005 Subaru R1,2005 Subaru Pleo,2004 Subaru Impreza,2004 Subaru Forester,2003 Subaru Traviq

    Note:

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