RepairPal Certified shops can diagnose and repair your 1996 Chevrolet Corsica. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Hello,
Can you describe what prompted the change of those components? It is highly likely that the idle air control valve or EGR valve is clogged.
Inspect for clogs, leaks, and above all, scan for codes and post them here.