Severity: Low
Safe to drive. Schedule a diagnosis soon.
What P2097 means
The downstream O2 sensor shows the exhaust after the converter is rich.
Symptoms
- Possibly sulfur smell
Common causes
Most likely first
- 1Upstream sensor bias
- 2Rich condition
- 3Converter issue
How we diagnose it
- Review O2 data and fuel trims
Every vehicle sets codes under its own conditions. We check the factory diagnostic steps and service bulletins for your VIN, so the repair targets the actual cause.