Fitment notes: NUMMI-built Chevrolet Nova based on Toyota Corolla platform; uses Toyota-style battery configuration
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Control Modules — 1987 Chevrolet Nova
Every control module on the 1986-1987 Chevrolet Nova — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
⚠️ Requires VIN-specific PROM chip installation. ALDL 8,192-baud protocol with 12-pin OBD-I connector under dash. PROM must be transferred from old ECM or ordered separately by VIN and engine code.
High Energy Ignition Module (HEI)0.5 hr R&Rno coding
📍 Inside distributor cap
⚠️ Non-programmable solid-state ignition trigger. Requires timing adjustment after replacement.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1987 Chevrolet Nova 1.6L I4 (Toyota 4A-C/4A-LC, carbureted) and can vary by trim.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.