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P0150

Overview

Code

P0150

Code Type

P

Code Class

P0

System

Engine, Emissions

Severity Level

Medium

Emissions Related

true

Drivability Impact

Minor

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0150 indicates a malfunction in the oxygen sensor circuit for Bank 2 Sensor 1

Symptoms

Check Engine Light illuminated; Poor fuel economy; Rough idle

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

The upstream oxygen sensor on Bank 2 controls fuel mixture and emissions

Possible Causes

Faulty oxygen sensor; Wiring or connector issues; Exhaust leaks

Diagnostic Steps

1 Confirm the fault code; 2 Inspect wiring and exhaust system; 3 Monitor live O2 sensor data; 4 Replace the oxygen sensor if faulty

Drive Safety Notes

Driving is possible, but emissions and fuel efficiency may be reduced

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