P0144Nissan LeafYears: 1996 - 2026
O2 Sensor Circuit High Voltage (Bank 1, Sensor 3)
What does this mean?
Code P0144 indicates a problem with the third oxygen sensor on Bank 1. This sensor is used in some vehicles with a secondary catalytic converter for additional monitoring.
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Nissan Leaf models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
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Common Causes
DB.cause_sensor
DB.cause_vacuum
DB.cause_wear
Symptoms to Watch For
- Check Engine Light is illuminated
- DB.symp_engine_perf
- DB.symp_fuel_econ
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Repair Estimate
$100 - $450
Includes parts and labor. May vary by location.
DIY Difficulty
Moderate