Engine-Codes - Honda - P2A00 Honda

P2A00 Honda Code - Air/Fuel Ratio Sensor 1 Bank 1 Circuit Range/Performance Problem

- Code Popularity: 56,864 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P2A00 Honda?

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 Sensor 1 Bank 1
  • Air/Fuel Ratio Sensor 1 Bank 1 harness is open or shorted
  • Air/Fuel Ratio Sensor 1 Bank 1 circuit poor electrical connection
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How to Fix the DTC P2A00 Honda?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P2A00 Honda 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.

What are Code Possible Symptoms?

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

What Does the P2A00 Honda Code Mean?

The Air/Fuel ratio (A/F) sensor has a linear signal output in relation to the oxygen concentration. The Powertrain Control Module (PCM) computes the air/fuel ratio from A/F sensor output voltage and uses the fuel feedback control to improve exhaust emissions. The PCM monitors A/F sensor output voltage during deceleration with the throttle fully closed, and if the output voltage deviates greatly from normal oxygen concentration levels, it detects a malfunction and stores a Diagnostic Trouble Code (DTC).

P2A00 Honda Code - Air/Fuel Ratio Sensor 1 Bank 1 Circuit Range/Performance Problem

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