The Lemon Index

Check engine light · Engine codes

P2097: Post Catalyst Fuel Trim System Too Rich (Bank 1)

Powertrain · GenericP2097
Get it fixed soon
What it means

After the catalytic converter, the exhaust reads too rich for too long.

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 catalytic converter. Then: failing O2 sensor; engine running rich.

Owners named P2097 in 14 complaints to the U.S. government, most often on the Chevrolet Malibu.

Models that report it most

Complaints that name P2097, by model. Raw counts, not a failure rate: popular models get more complaints. Tap a model for its years, mileage and what owners say fixed it.

P2097 by model: P2097 Chevrolet Malibu (11)

Years owners report it on most: 2017 Chevrolet Malibu · 2016 Chevrolet Malibu

The details

What P2097 means

After the catalytic converter, the exhaust reads too rich for too long.

Can I drive with P2097?

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.

29% of the owner complaints that name P2097 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 P2097
  • Failing catalytic converter
  • Failing O2 sensor
  • Engine running rich

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

What owners describe
  • Stalls or shuts off: 29% of complaints
  • Loses power or goes into limp mode: 21% of complaints
  • Warning lights and electrical faults: 21% of complaints

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

Model years that report P2097 most

2017 Chevrolet Malibu (4), 2016 Chevrolet Malibu (3).

Related codes

P2096 P2099 P2015 P200A P2007 P2006 P2005 P2004

Quick answers

What does P2097 mean?

Post Catalyst Fuel Trim System Too Rich (Bank 1). After the catalytic converter, the exhaust reads too rich for too long.

Can I drive with P2097?

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 P2097?

Failing catalytic converter; Failing O2 sensor; Engine running rich.

Counts: NHTSA owner complaints whose text names P2097. 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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