P164B
O2 Sensor Positive Current Trim Circuit Performance Bank 2 Sensor 1
P164B is an OBD-II diagnostic trouble code meaning: O2 Sensor Positive Current Trim Circuit Performance Bank 2 Sensor 1. Common causes: open or short circuit in o2 sensor circuit, poor contact in the sensor connector. Estimated repair cost: $33–89.
Symptoms
- Increased fuel consumption
- Unstable engine idling
- Reduced engine power
- Check Engine Light Is On
- Dips during acceleration
Causes
- Open or short circuit in O2 sensor circuit
- Poor contact in the sensor connector
- Oxygen sensor malfunction (bank 2, sensor 1)
- Problems with the wiring harness near the sensor
- Engine control unit (ECU) malfunction
How to Fix
- Check the integrity of the wiring to the O2 sensor
- Clean the contacts in the sensor connector
- Check the resistance and voltage in the sensor circuit
- Replace the oxygen sensor if necessary
- Check sensor parameters using a diagnostic scanner
Related codes
FAQ
What does the P164B code mean?
P164B is an OBD-II diagnostic trouble code that indicates: O2 Sensor Positive Current Trim Circuit Performance Bank 2 Sensor 1
What causes a P164B error code?
The most common causes of P164B include: Open or short circuit in O2 sensor circuit; Poor contact in the sensor connector; Oxygen sensor malfunction (bank 2, sensor 1); Problems with the wiring harness near the sensor.
How do I fix a P164B diagnostic trouble code?
To fix P164B: Check the integrity of the wiring to the O2 sensor. Clean the contacts in the sensor connector. Check the resistance and voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P164B?
Yes, but get it checked soon
How much does it cost to fix P164B?
The estimated repair cost for P164B is $33–89. Actual cost depends on your vehicle, location, and labor rates.
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