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Check engine light · Engine codes

P2195: O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1)

Powertrain · GenericP2195
Get it fixed soon
What it means

The upstream O2 sensor keeps reading lean.

How serious

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

Where a shop starts

Failing O2 sensor. Then: vacuum or exhaust leak; low fuel pressure.

Owners named P2195 in 9 complaints to the U.S. government, most often on the Ford Focus.

Cars owners report it on

Complaints that name P2195, by model. Raw counts, not a failure rate: popular models get more complaints.

The details

What P2195 means

The upstream O2 sensor keeps reading lean.

Can I drive with P2195?

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

33% of the owner complaints that name P2195 also say the car stalls or shuts off. A complaint can describe more than one problem, so this doesn't prove the code caused it.

Common causes of P2195
  • Failing O2 sensor
  • Vacuum or exhaust leak
  • Low fuel pressure

A shop should confirm the cause with a scan and tests before replacing parts.

What owners describe
  • Stalls or shuts off: 33% of complaints
  • Brakes or ABS act up: 22% of complaints

Share of complaints naming the code whose text also mentions each problem.

Related codes

P2196 P2198 P2191 P219A P219B P219C P219D P219E

Quick answers

What does P2195 mean?

O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1). The upstream O2 sensor keeps reading lean.

Can I drive with P2195?

Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.

What causes P2195?

Failing O2 sensor; Vacuum or exhaust leak; Low fuel pressure.

Counts: NHTSA owner complaints whose text names P2195. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.

Updated · Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data

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