P0160
Low SeverityO2 Sensor Circuit No Activity (Bank 2, Sensor 2)
Emissions System
What Does P0160 Mean?
Downstream O2 sensor bank 2 shows zero activity.
Common Fix
Replace downstream O2 sensor
Estimated Cost (DIY)
$25 - $80
Symptoms
- ⚠️Check engine light
- ⚠️Failed emissions
Common Causes
Dead sensorlikely
Disconnectedpossible
How to Diagnose P0160
- 1Verify connection
- 2Check heater
- 3Replace sensor
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Frequently Asked Questions
- Will this affect my engine?
- No performance effect. Only matters for emissions testing.
- Can I just disconnect it?
- That will cause the same code. Replace the sensor for a proper fix.