Chevrolet Corvette Opti-Spark replacement needed due to starting issue on Chevrolet Corvette

Some Chevrolet Corvette owners report experiencing starting issues potentially linked to the Opti-Spark system, such as rough or erratic cranking following installation of a new unit, which may indicate a problem. These issues can also manifest as the engine failing to start or running poorly, suggesting a failed Opti-Spark. When addressing these concerns, some owners consider replacing the Opti-Spark with a modified unit for better performance and emphasize the importance of checking wiring connections, particularly the pigtail connector to the main wiring harness, as faulty connections can exacerbate the problem. Additionally, when replacing the Opti-Spark, it is crucial to have the appropriate parts, such as the GM Opti-Spark for 1992-1994 LT1 engines. If replacing the Opti-Spark does not resolve the starting issue, some owners find it necessary to inspect and possibly replace other components like injectors, the fuel pump, filter, fuel pressure regulator, coil, and module.