SI B16 07 15 February 2016 Fuel Supply Systems Technical Service. This Service Information bulletin supersedes SI B16 07 15 dated January 2016. designates changes to this revision SUBJECT Fuel Tank Non-Return Valve Faults with SES Light. Check Engine Light is illuminated and the following faults are stored in the DME: 0x191A94 - Fuel tank non-return valve: clamped shut 0x191A93 - Fuel tank non-return valve: clamped open CAUSE Software and hardware errors
