P014E Nissan

Air Fuel Ratio Sensor Slow Response – Rich To Lean Bank 2 sensor 1

Table of contents

• Possible Causes
• How To Fix
• Tech Notes
• Cost To Diagnose
• When is the code detected
• Possible Symptoms
• Description

P014E NISSAN Possible 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

How do I fix code P014E NISSAN?

  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.

Tech Notes

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

Cost of diagnosing the P014E NISSAN code

  The cost of diagnosing the P014E NISSAN 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.

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).

Possible Symptoms

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

P014E NISSAN Description

  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).