P0134 Fault Code — O2 Sensor No Activity (Bank 1 Sensor 1)

Severity: 🟠 High — diagnose within 1–2 days

Upstream O2 sensor not switching at all — open circuit or heater failure.

Common Symptoms

Common Causes

How We Fix It

Check O2 heater circuit, replace sensor.

Frequently Asked Questions

What does P0134 mean?

P0134 (O2 Sensor No Activity (Bank 1 Sensor 1)) means Upstream O2 sensor not switching at all — open circuit or heater failure. Common symptoms include poor fuel economy, open-loop fuelling, failed emissions.

How much does P0134 repair cost in Hyderabad?

At GarageNation Hyderabad, we diagnose P0134 with dealer-grade scan tools and provide a fixed quote before any work begins. Call +91 8106316369 for an estimate.

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