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Check engine light · Engine codes

P2196: O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1)

Powertrain · GenericP2196
Get it fixed soon
What it means

The upstream O2 sensor keeps reading rich.

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: leaking injector; fuel pressure too high.

Owners named P2196 in 24 complaints to the U.S. government, most often on the Ford Focus.

Cars owners report it on

Complaints that name P2196, by model. Raw counts, not a failure rate: popular models get more complaints.

The details

What P2196 means

The upstream O2 sensor keeps reading rich.

Can I drive with P2196?

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 P2196 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 P2196
  • Failing O2 sensor
  • Leaking injector
  • Fuel pressure too high

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

What owners describe
  • Stalls or shuts off: 33% of complaints
  • Shakes, runs rough or misfires: 21% of complaints
  • Loses power or goes into limp mode: 21% of complaints
  • Won't start or hard to start: 8% of complaints

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

Model years that report P2196 most

2014 Volkswagen Passat (2), 2016 Ford Focus (2), 2016 Ford Edge (2), 2017 Ford Focus (2), 2018 Lincoln MKZ (2).

Related codes

P2195 P2198 P219A P2191 P219B P219C P219D P219E

Quick answers

What does P2196 mean?

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

Can I drive with P2196?

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 P2196?

Failing O2 sensor; Leaking injector; Fuel pressure too high.

Counts: NHTSA owner complaints whose text names P2196. 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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