What usually causes it
- A failing rear oxygen sensor (sensor 2)
- A leaking fuel injector, or fuel pressure that is too high
- A clogged air filter or a dirty air flow sensor
- A worn catalytic converter
P2097Starts at: OK to drive, fix when convenient
Exhaust after the converter shows too much fuel (bank 1)
The computer adjusts the fuel using the sensor after the catalytic converter, the exhaust part that cleans the fumes. That sensor keeps reporting too much fuel in the exhaust, and the computer has run out of room to correct it.
Check this first
Look at the air filter. A clogged filter is cheap to replace.
What to watch for
- A strong smell of gas or black smoke
- A rotten egg smell from the exhaust
- A flashing check engine light, which means a bad misfire
Can I keep driving?
We rate P2097 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.
Quick answers about P2097
What does P2097 mean?
Exhaust after the converter shows too much fuel (bank 1). The computer adjusts the fuel using the sensor after the catalytic converter, the exhaust part that cleans the fumes. That sensor keeps reporting too much fuel in the exhaust, and the computer has run out of room to correct it.
Can I keep driving with P2097?
We rate P2097 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.
What usually causes P2097?
The most common causes, in order: A failing rear oxygen sensor (sensor 2); A leaking fuel injector, or fuel pressure that is too high; A clogged air filter or a dirty air flow sensor; A worn catalytic converter.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.