The Lemon IndexAfter the bank 2 catalytic converter, the exhaust reads too rich.
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.
Failing catalytic converter. Then: failing O2 sensor.
Owners named P2099 in 7 complaints to the U.S. government, most often on the Chevrolet Cruze.
Cars owners report it on
Complaints that name P2099, by model. Raw counts, not a failure rate: popular models get more complaints.
The details
What P2099 means
After the bank 2 catalytic converter, the exhaust reads too rich.
Can I drive with P2099?
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 P2099 also say the car shakes, runs rough or misfires. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P2099
- Failing catalytic converter
- Failing O2 sensor
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Shakes, runs rough or misfires: 29% of complaints
Share of complaints naming the code whose text also mentions each problem.
Related codes
P2097 P2096 P2015 P200A P2007 P2006 P2005 P2004
Quick answers
What does P2099 mean?
Post Catalyst Fuel Trim System Too Rich (Bank 2). After the bank 2 catalytic converter, the exhaust reads too rich.
Can I drive with P2099?
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 P2099?
Failing catalytic converter; Failing O2 sensor.
Counts: NHTSA owner complaints whose text names P2099. 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.