Edelbrock 3542 2-Bar MAP Sensor Upgrade for Pro-Flo 4 Boosted EFI Applications

The Edelbrock 3542 is a 2-Bar Manifold Absolute Pressure (MAP) Sensor designed as a direct upgrade for Pro-Flo 4 electronic fuel injection systems running boosted applications. By expanding the MAP sensor's operating range to 2 bar (29.0 psi), this sensor enables the Pro-Flo 4 ECU to accurately read boost pressure and deliver proper fuel and air mixture under forced induction conditions.

Key Features:

• 2-Bar operating range — extends MAP sensor capability to support boosted (supercharged or turbocharged) Pro-Flo 4 setups up to 15 psi of boost
• Plug-and-play design — 3-pin terminal connector integrates directly with the Pro-Flo 4 wiring harness
• Expanded pressure range — 29.0 psi maximum MAP range for accurate ECU fueling calculations under boost
• Sold individually — includes one MAP sensor
• Not compatible with GM LS3 applications — intended for non-LS3 Pro-Flo 4 systems only

When running the Edelbrock Pro-Flo 4 EFI system with a supercharger or turbocharger, the standard 1-bar MAP sensor is insufficient to read positive manifold pressure. Upgrading to the Edelbrock 3542 2-Bar MAP sensor — paired with the free Pro-Flo 4 firmware update from Edelbrock — unlocks full boost compatibility and ensures the ECU receives accurate pressure signals for optimal engine performance and protection.