⚠️ Receives data from EEC-IV via analog signals; no programming required.
Electronic Engine Control (EEC-IV)1.0 hr R&Rno coding
📍 passenger side firewall, below master cylinder
⚠️ Calibration assembly (PROM) must match vehicle application; no field programming capability. All engines used EEC-IV by 1984.
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 1986 Ford LTD 4.2L V8 and can vary by trim.
🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.