This is a tested AMP EFI MS3Pro Plug & Play ECU, and it works 100%. designed specifically for the 1986–1987 Turbo Buick platform. Includes Bosch wideband O2 sensor, and 2 pressure sensors.
🟢 Green Dot – Verified Good Used / Fully Functional Unit
📦 Includes: • MS3Pro ECU (firmware verified) • Bosch wideband O2 sensor • One combo pressure/temp transducer with wiring leads and one 100 psi sensor.
Condition Notes: • All connectors clean and pins intact • Sensors in good condition with no broken pigtails • ECU casing clean with light surface wear only • Wideband O2 shows typical use but threads and tip are solid
💡 Why You Want It: The MS3Pro Plug & Play system transforms the 1986–1987 Turbo Buick into a fully tunable, modern EFI setup. Supports boost control, data logging, flex fuel, traction control, and real-time tuning—all through the factory harness. Perfect for high-performance street or track builds.
⚠️ Disclaimer: Used electronics are sold as-is. Buyer responsible for verifying compatibility. No returns, refunds, or exchanges.
