00537

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00537 - Lambda (Oxygen Sensor) Regulation

00537 - Lambda (Oxygen Sensor) Regulation: Upper Limit

Possible Symptoms

  • Lambda Control inactive
  • Engine running rough

Possible Causes

  • Wiring and/or Connector(s) from/to Lambda Sensor(s) faulty
  • Lambda Control/Sensor(s) faulty
  • Injector(s) faulty/blocked
  • Fuel Pressure Regulator faulty
  • Fuel Pump faulty
  • Fuel Tank empty
  • Vacuum/air leaks

Possible Solutions

  • Check Lambda Control/Sensors
  • Check/Repair Wiring and/or Connector(s) from/to Lambda Sensor(s)
  • Check/Replace/Clean Injector(s)
  • Check/Replace Fuel Pressure Regulator
  • Check/Replace Fuel Pump
  • Check Fuel Level
  • Vacuum/smoke test hoses/valves and replace leaking ones


00537 - Lambda (Oxygen Sensor) Regulation: Lower Limit

Possible Symptoms

  • Lambda Control inactive
  • Engine running rough

Possible Causes

  • Activated Charcoal Filter Solenoid Valve 1 (N80) leaking/sticking
  • Injector faulty (not closing completely)
  • Fuel Pressure Regulator faulty

Possible Solutions

  • Check/Replace Activated Charcoal Filter Solenoid Valve 1 (N80)
  • Check/Replace/Clean Injector(s)
  • Check Fuel Pressure Regulator



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