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Trouble code libraryFuel and air

P2195 Oxygen sensor is stuck reading lean (bank 1, sensor 1)

Generic SAE definitionO2 sensor signal biased/stuck lean (Bank 1 Sensor 1)

Drive gentlyYou can drive it, but take it easy and get it looked at soon – waiting usually makes the repair bigger.

Check this first

Check for exhaust leaks near the sensor before buying parts.

What usually fixes it

In the order a good shop checks them. Typical total: $103–$925 at $130 an hour.

  1. Exhaust leak

    $176–$494

    Air drawn in at a leak keeps the sensor pinned lean.

  2. Upstream oxygen sensor

    $128–$350

    A failed sensor stops responding altogether.

  3. Fuel delivery

    $268–$925

    A real lean condition from low pressure or a dirty injector.

Code titles are the generic SAE definitions. Prices are typical US parts and labor for a common car or light truck – a guide for judging a quote, not a quote. Always confirm a repair against the vehicle in front of you.

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See what your vehicle says about P2195

A stored code is a headline, not the story. The vehicle also holds the conditions from the moment the code set, how close each part is to the limit it fails at, what the fuel trims are doing, and whether the fault is still happening. Drive DTC reads all of it with a USB adapter and a Windows PC – read-only by design.

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The Trouble codes screen in Drive DTC: stored, pending and permanent counts, then C0040-13 explained in plain English with what to check first, likely fixes in order and typical cost ranges

More in Fuel and air

All 73 codes in this group
P0245Turbocharger/supercharger wastegate solenoid A low P0246Turbocharger/supercharger wastegate solenoid A high P0299Turbocharger/supercharger A underboost condition P2196O2 sensor signal biased/stuck rich (Bank 1 Sensor 1) P2197O2 sensor signal biased/stuck lean (Bank 2 Sensor 1) P2198O2 sensor signal biased/stuck rich (Bank 2 Sensor 1)