March 28 (Reuters) - The National Highway Traffic Safety

Administration said on Friday it was opening an engineering

analysis into 2.2 million Honda ( HMC ) vehicles over concerns

related to its engine restarting.

Complainants have flagged the engine fails to restart on its

own from a complete stop at a traffic light or road intersection

when the Auto Idle Stop function is engaged.

There have been 1,384 incidents reported to the NHTSA's

Office of Defects Investigation, of which four resulted in

crashes or fires and two in injury incidents.