OBD-II code · Powertrain (generic, extended)
P200E Catalyst System Over Temperature (Bank 1)
A temperature sensor in the exhaust catalyst on bank 1 reports a value above the safe operating limit. Sustained over-temperature can sinter the precious-metal washcoat and destroy conversion efficiency.
Is it safe to drive with P200E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPersistent misfire dumps unburned fuel into the cat
- PossibleSustained rich mixture from leaking injector or fuel pressure regulator
- Less likelyCatalyst temperature sensor drifts high
Symptoms
- Check engine light on
- Failed emissions inspection
- Possibly slightly increased fuel consumption
- Sulfur (rotten egg) smell from exhaust under load
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Likely to fail
- Parts involved
- Catalytic Converter, Exhaust Temperature Sensor
Related codes
- P200FCatalyst System Over Temperature (Bank 2)
- P200BIntake Manifold Runner Performance (Bank 2)
- P200CParticulate Filter Over Temperature (Bank 1)
- P200DParticulate Filter Over Temperature (Bank 2)
- P2010Intake Manifold Runner Control Solenoid Circuit High (Bank 1)
- P2011Intake Manifold Runner Control Circuit/Open (Bank 2)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.