Engine-Codes - Infiniti - P015D Infiniti

P015D Infiniti Code - Air Fuel Ratio Delayed Response - Lean To Rich Bank 2 Sensor 1

- Code Popularity: 2,403 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
ChatAC AutoCodes.com AI Chat

What are the Possible Causes of the DTC P015D Infiniti?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Air Fuel Ratio (A/F) Bank 2 Sensor 1
  • Air Fuel Ratio (A/F) Bank 2 Sensor 1 harness is open or shorted
  • Air Fuel Ratio (A/F) Bank 2 Sensor 1 circuit poor electrical connection

Code Tech Notes

Replacing the Air Fuel Ratio Bank 2 Sensor 1 usually takes care of the problem.

⚠ Does your Infiniti have Safety Recalls? → Check here

How to Fix the DTC P015D Infiniti?

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 pins.

Search for P015D Infiniti Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P015D Infiniti code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The response time of a A/F sensor 1 signal delays more than the specified time computed by Engine Control Module (ECM).

What are Code Possible Symptoms?

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

What Does the P015D Infiniti Code Mean?

The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a heater in the element. The sensor is capable of precise measurement λ = 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide λ range. The exhaust gas components diffuse through the diffusion layer at the sensor cell. An electrode layer is applied voltage, and this current relative oxygen density in lean. Also this current relative hydrocarbon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this electrode layer of current. In addition, a heater is integrated in the sensor to ensure the required operating temperature of approximately 760°C (1,400°F).

P015D Infiniti Code - Air Fuel Ratio Delayed Response - Lean To Rich Bank 2 Sensor 1

Need more Information on the Code?

Need more information on how to fix the P015D Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P015D Infiniti code diagnosed by a professional: Find a repair shop in your area