DTC P226C-84: Turbocharger Boost Control "A" Slow Response - Signal below allowable range: Action
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To validate the repair, clear the DTCs and perform a road test that consists of three drive cycles (engine on/off).
- Check the intake system for leaks. Rectify as necessary
- Check the intake system for restrictions. Rectify as necessary
- Check the charge air pressure sensor for damage. Install a new charge air pressure sensor as necessary
- Check the exhaust manifolds for leaks. Rectify as necessary
- Check the exhaust crossover pipe for leaks. Rectify as necessary
- Refer to the appropriate system wiring diagrams and check the variable geometry turbocharger vane actuator circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Refer to the appropriate system wiring diagrams and check the variable geometry turbocharger vane actuator position sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Check the integrity of the variable geometry turbocharger vanes and linkage. Rectify as necessary
- Check the operation of the variable geometry turbocharger vane actuator. Install a new variable geometry turbocharger vane actuator as necessary
- Check the operation of the electric throttle. Rectify as necessary