P2237 KIA - HO2S Pumping Current Circuit/Open Bank 1 Sensor 1

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Heated Oxygen Sensor Bank 1 Sensor 1
  • Heated Oxygen Sensor Bank 1 Sensor 1 harness is open or shorted
  • Heated Oxygen Sensor Bank 1 Sensor 1 circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2237 Kia Description

The linear O2 sensor is mounted on the front side of the Catalytic Converter (warm-up catalytic converter) or in the front exhaust pipe. It detects a wide range of air/fuel ratios in the exhaust gas from the rich to lean regions. This linear O2 sensor produces a current that corresponds to a specific air/fuel ratio. The Engine Control Module (ECM) monitors this signal and determines whether the air/fuel mixture is rich or lean. The ECM constantly monitors the linear O2 sensor and increases or decreases the fuel injection duration using this signal. This is called closed-loop fuel control operation.
OBDII Code P2237 Kia - HO2S Pumping Current Circuit/Open Bank 1  Sensor 1 - AutoCodes.com

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P2237 KIA Comments

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