P0160

Low Severity

O2 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

Related Symptoms

Common Causes

Dead sensorlikely
Disconnectedpossible

How to Diagnose P0160

  1. 1Verify connection
  2. 2Check heater
  3. 3Replace sensor

OEM Diagnostic Flowchart

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P0160.

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.

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