Fitment notes: Side post terminals standard on GM vehicles of this era
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Every control module on the 1980-1985 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.
Electronic Control Module (ECM)1.2 hr R&Rdealer / factory tool +0.3 hr1981-1985 with Computer Command Control (CCC)▸ programming details
📍 Passenger side kick panel, behind trim cover
🔧 PROM chip replacement
⚠️ First programmable ECM in Nova. Requires VIN-specific PROM chip installation. PROM is physically transferred from old ECM or ordered separately. ALDL 160-baud (1981-1985) diagnostic connector under dash.
High Energy Ignition Module (HEI)0.5 hr R&Rno coding
📍 Integrated into distributor cap assembly under hood
⚠️ Non-programmable solid-state ignition trigger module. Standard on all engines through 1984. Mechanical adjustment required after installation.
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 1985 Chevrolet Nova 1.6L (4A-C) inline-4, 2-bbl and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.