1989 Buick Reatta cranks but no spark what could be the problem?

If a 1989 Buick Reatta cranks but has no spark, potential issues could include a faulty ignition coil, a malfunctioning ignition control module, or a problem with the crankshaft position sensor. Additionally, checking the wiring and connectors for any shorts or corrosion is essential. It's also worth examining the power supply to the ignition system and ensuring that the fuel pump is functioning properly, as these systems often interact. A diagnostic scan could help identify any error codes related to the ignition system.