P223C

O2 Sensor Pumping Current Range/Performance Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Slightly increased fuel consumption
Minor loss of engine power
Possible unstable idle speed
Possible misfires

Causes

Faulty oxygen sensor (HO2S) Bank 1
Open or short circuit in the sensor circuit
Poor electrical connection at the sensor connector
Damage to the wiring harness near the sensor
Sensor circuit grounding problems

How to Fix

Check the condition of the connectors and wiring of the oxygen sensor
Check the voltage and resistance in the sensor circuit
Clean connectors from corrosion and oxidation
Replace faulty Bank 1 oxygen sensor
Reset the error code and take a test drive

Related codes

P223A P223B P223D