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P2274 Mercury Code - Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3

- Code Popularity: 1,618 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P2274 Mercury?

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 O2 Sensor Bank 1 Sensor 3
  • Exhaust leaks
  • O2 Sensor Bank 1 Sensor 3 harness is open or shorted
  • O2 Sensor Bank 1 Sensor 3 circuit poor electrical connection
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC P2274 Mercury?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2274 Mercury code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P2274 Mercury Description

The downstream heated oxygen sensor (HO2S) is forced rich and lean and monitored by the Powertrain Control Module (PCM). The test fails if the PCM does not detect the output of the HO2S in a calibrated amount of time.

OBDII Code P2274 Mercury - Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3 - AutoCodes.com
P2274 Mercury Code - Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3

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Code P2274 Mercury comments

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