Engine-Codes - Honda - P2270 Honda

P2270 Honda Code - Secondary Heated Oxygen Sensor 2 Bank 1 Circuit Signal Stuck Lean

- Code Popularity: 18,580 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P2270 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 Rear Heated Oxygen Sensor 2 Bank 1
  • Rear Heated Oxygen Sensor 2 Bank 1 harness is open or shorted
  • Rear Heated Oxygen Sensor 2 Bank 1 circuit poor electrical connection
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How to Fix the DTC P2270 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 P2270 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 P2270 Honda Code Mean?

The secondary HO2S detects the oxygen concentration in the exhaust gas downstream of the three-way catalyst (TWC). The sensor output voltage characteristics are similar to the Air/Fuel ratio (A/F) sensor. The oxygen concentration is detected after the TWC during fuel feedback control using the A/F sensor, and it optimizes the fuel feedback control to maximize the effect of the TWC. If, after current is applied to the secondary HO2S heater, the secondary HO2S does not fluctuate and the output is stuck within the specified area, a malfunction is detected and a Diagnostic Trouble Code (DTC) is stored.

P2270 Honda Code - Secondary Heated Oxygen Sensor 2 Bank 1 Circuit Signal Stuck Lean

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