P200FCatalyst System Over Temperature (Bank 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P200F flags excessive temperature in the catalyst of bank 2, so it needs an engine whose second bank feeds its own catalyst with its own temperature sensor. No manufacturer documents P200F publicly; GM and Ford describe only the bank 1 code P200E for their single-path diesels, with limits around 800 to 850 °C behind the oxidation catalyst or a link to a stationary regeneration that runs hot. A twin-path system would apply such a limit per side. Overheating confined to one bank usually has a cause on that bank: an injector dribbling fuel, misfire on those cylinders, or a sensor reading too high. Comparing both banks helps: if only bank 2 is hot, look at its cylinders and sensor first. CARB treats such temperature records as protection, not as proof that the catalyst still converts, so efficiency is monitored separately.
- What you may notice
- Malfunction indicator lamp on
- Possible power reduction
- Likely causes
- LikelyFuel slipping into the bank 2 exhaust (dribbling injector, misfire)
- PossibleBank 2 exhaust temperature sensor reading too high
- RareRegeneration overheating on bank 2
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €3,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.