1992 Other Opel Models spark

Electrical problem
1992 Other Opel Models 4 cyl Two Wheel Drive Manual

my mechanic sayes that there is current to the coil, but no spark goes to the distributer, I have had the ecu checked, and the relay and the coil and module. They all work now he sayes it is the pick-up from the crank? I live in a small town in the middle of nowhere so I cannot get another mechanic or agents to look at the car can you please give me a suggestion as to what the problem could be