AutoCodes - OBDII Code List - P016A

P016A - O2 Sensor Not Ready Bank 1 Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
What does this mean?
Table of contents

P016A Possible Causes

What does this mean?
  • Faulty Heated Oxygen Bank 1 Sensor 1
  • Heated Oxygen Bank 1 Sensor 1 harness is open or shorted
  • Heated Oxygen Bank 1 Sensor 1 circuit poor electrical connection
  • Inappropriate fuel pressure
  • Faulty fuel injectors
  • Exhaust leaks the Heated Oxygen Bank 1 Sensor 1

How do I fix code P016A?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P016A code

Labor: 1.0

The cost of diagnosing the P016A code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • High Fuel Consumption
  • Excessive Smoke from Exhaust

P016A Description

The Heated Oxygen Sensor (HO2S) monitor tracks the rate of voltage change during the rise and fall of the HO2S signal. When the rate of voltage change is less than a calibrated value, the Powertrain Control Module (PCM) begins to modify the fuel trim attempting to increase the HO2S voltage switch rate. The DTC sets when the PCM is at the allowable limit or has exceeded an allowable length of time for fuel trim modification, without detecting an acceptable rate of voltage change.
OBDII Code P016a - O2 Sensor Not Ready Bank 1 Sensor 1 - AutoCodes.com

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