Fault effect and breakdown warning

Breakdown notice:

The engine reverts to its emergency limp-home program, continued vehicle operation is possible, because power is reduced the driver should refrain from passing maneuvers.

Possible apparent symptoms:

When the fault is logged the engine stalls at idle, at higher engine speeds a brief drop in RPM can be felt / It is possible to restart engine when the fault is present (starting takes longer), engine runs in limp-home mode