The BMW trouble code P1011 is a Valvetronic Guiding Sensor Gradient Error (Bank 2), which is detected by the Engine Control Module (ECM). This code is set when the ECM detects that the fuel pump delivery pressure is too low. This code applies to vehicles such as the BMW F650GS, F800S, F800ST, and others. The P1011 code can be diagnosed using an OBD-II diagnostic scanner, which will identify an issue with the glow plug/heater circuit ‘A’ as the source of the problem. To resolve this issue, a technician may need to replace the glow plugs or investigate further to determine what other components might be at fault. In addition, a technician may need to adjust or replace components within the injector system, such as the 249-95 "5' 675-0° Enhancer cur 4v P1011 call (NB “"6 "P2? 511°“ 41220 4c 01: 001111111 24. 94 car camera support 64693 30,5 BMW 3415 10000 0111 11. Overall, BMW trouble code P1011 requires a qualified technician to investigate and diagnose before any repair work can be carried out.