DTC P2099-02: Post Catalyst Fuel Trim System Too Rich Bank 2 - General signal failure: Action
WARNING: This page is about a different car, the 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle conditions to enable DTC logging strategy
- Drive vehicle under steady state conditions for up to 20 minutes
- Prioritized checks to perform
- Check the exhaust system for leaks. Repair as necessary
- Check pre and post catalyst oxygen sensors for damaged and correct installation
- Refer to the electrical circuit diagrams and check post catalyst oxygen sensor circuits for open circuit short circuit to power, short circuit to ground, high resistance
- Refer to the electrical circuit diagrams and check pre catalyst oxygen sensor circuits for open circuit short circuit to power, short circuit to ground, high resistance
- Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest
- Check and install a new pre catalyst oxygen sensor as required
- Check and install a new post catalyst oxygen sensor as required