P0140 — O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)

Q: What does fault code P0140 mean?

P0140 means: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2). It is a Powertrain (engine/transmission) fault code defined by the OBD-II standard.

Q: Can I keep driving with P0140?

With P0140 you can usually drive home and book an inspection within a few days unless the car feels abnormal.

Powertrain (engine/transmission)

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)

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Can I drive with P0140?

You can usually drive home and book an inspection within a few days.

Frequently asked questions

What does fault code P0140 mean?

P0140 means O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2).

Can I keep driving with P0140?

You can usually drive home and book an inspection within a few days.

Related fault codes

P0141 — O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0100 — Mass or Volume Air Flow Circuit Malfunction
P0101 — Mass or Volume Air Flow Circuit Range/Performance
P0102 — Mass or Volume Air Flow Circuit Low Input
P0103 — Mass or Volume Air Flow Circuit High Input
P0104 — Mass or Volume Air Flow Circuit Intermittent
P0105 — Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
P0106 — Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance
P0107 — Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
P0108 — Manifold Absolute Pressure/Barometric Pressure Circuit High Input

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