P2274 - Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3   
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Possible 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

Possible symptoms

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

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

P2274 Information for specific makes

  • P2274 DODGE Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3
  • P2274 FORD Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3
  • P2274 LINCOLN Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3
  • P2274 MERCURY Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 3

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P2274 Comments

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