OBDII Code List

P2A03 HONDA - O2 Sensor Circuit Range/Performance Bank 2 Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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P2A03 HONDA Possible Causes

  • Air fuel ratio (A/F) sensor 1
  • Air fuel ratio (A/F) sensor 1 heater
  • Fuel pressure
  • Fuel injector
  • Intake air leaks

First diagnose P2A03 HONDA code

    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 terminals.

Cost of diagnosing the P2A03 HONDA code

    Labor: 1.0

    The cost of diagnosing the P2A03 HONDA 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.

P2A03 HONDA Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P2a03 Honda 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 Lambda = 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide Lambda 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 about 800°C (1,472°F).

OBDII Code P2a03 Honda - O2 Sensor Circuit Range/Performance Bank 2 Sensor 1 -

P2A03 HONDA More Information

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