crank angle sensor?

[autox 89 dx]

my dad has a 1990 DA and its hard to start . The ecu was bad and never threw any code he changed the ecu and now it flashes a 4 my question is where is the crank angle sensor?

 

[t3t4delsol]

its inside the dizzy

 

[autox 89 dx]

thanx, thats what I thought but wasnt sure right on.