The Lemon IndexBank 1 runs lean when you accelerate or pull hard.
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.
Weak fuel pump. Then: clogged fuel filter or injectors; dirty MAF sensor.
Owners named P2191 in 5 complaints to the U.S. government, most often on the Kia Optima.
Cars owners report it on
Complaints that name P2191, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2013 Kia Optima
The details
What P2191 means
Bank 1 runs lean when you accelerate or pull hard.
Can I drive with P2191?
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.
60% of the owner complaints that name P2191 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 P2191
- Weak fuel pump
- Clogged fuel filter or injectors
- Dirty MAF sensor
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Stalls or shuts off: 60% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P2191 most
2013 Kia Optima (2).
Related codes
P2195 P2196 P2198 P219A P219B P219C P219D P219E
Quick answers
What does P2191 mean?
System Too Lean at Higher Load (Bank 1). Bank 1 runs lean when you accelerate or pull hard.
Can I drive with P2191?
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 P2191?
Weak fuel pump; Clogged fuel filter or injectors; Dirty MAF sensor.
Counts: NHTSA owner complaints whose text names P2191. 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.