Service Buddy
Emissions

Code P0150

O2 Sensor Circuit Bank 2

Plain English Meaning:Oxygen sensor malfunction on second bank

Green: Safe to Drive

Not critical short term

What You'll Notice (Symptoms)

  • Check engine light poor fuel economy

Most Common Causes

1Sensor failure wiring issue

Verified Repair Playbook

Required Mechanic Tests

A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:

Check voltage and signal

Typical Fix Paths & Estimated Costs

Replace sensor $100–$300

🛒 Parts for P0150 Repair

Common replacement parts for emissions codes (Paid links)

Oxygen (O2) Sensor$25–$80
Catalytic Converter$150–$400
EGR Valve$40–$120

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