P0087-77 - Fuel Rail/System Pressure - Too Low Bank 1 - Commanded position not reachable: Action
WARNING: This page is about a different car, the 2017 Jaguar XJ, 2016 Jaguar XJ, 2015 Jaguar XJ, 2014 Jaguar XJ, and 2013 Jaguar XJ. However, it is still accessible from the selected car via links, so may be relevant.
- Check for fuel leaks external of the fuel rail
- Check high pressure fuel pumps are not leaking from the high pressure system into the low pressure system