If the crank sensor is of unknown origin...that would be suspect just because aftermarket electronic things never seem to do well in our cars.
Those lights are pretty common, I think, and they indicate more than you think just because you can also 'manually' control them. If you search for them in a 'thread title search' I'm sure you'll find some useful threads.
I remember a few threads with cutting out while driving. It can just be loose cable on battery too, corrosion somewhere on one of the major grounds?
In NJ--Tierney's in Montclair, Sept. 25, 7:30 p.m.
In NYC Sat, Sept. 30, 8 p.m. at Broadway Comedy Club! Sat, Oct. 8, 6 p.m. at Greenwich Village Comedy Club.
Comedy can be a great cheap date!
Mangofy your E46!