2012 Dodge Challenger P2227 Fault Code After Installing Edelbrock Supercharger
Hi there, I recently installed an Edelbrock supercharger on my 2012 Dodge Challenger with a 5.7L engine, and since then, the vehicle has started displaying fault code P2227 — Low Barometric Pressure. After removing the supplied MAP sensor and replacing it with the original factory MAP sensor from a previously unused intake manifold, the fault cleared and engine performance improved significantly. I initially suspected the issue was with the Edelbrock-supplied MAP sensor, so I replaced it with a new one. However, the P2227 code reappeared after installation. This suggests that the problem may not be solely with the MAP sensor itself. Could there be an underlying issue related to the supercharging system or sensor calibration? Is the factory MAP sensor sufficient for boosted operation, or are additional modifications required? Any insights or recommendations would be greatly appreciated. Best regards, Mike
Performance modifications, especially transitioning from naturally aspirated to supercharged setups, often introduce complex sensor and calibration challenges. It's important to ensure all sensors — particularly the MAP sensor — are properly matched to the new airflow conditions. Do you have access to an OBD2 scanner that can display live data? Comparing real-time MAP readings between the original factory sensor and the Edelbrock-supplied unit could help identify discrepancies. Check out Edelbrock's official support page for technical assistance or any available Technical Service Bulletins (TSBs) related to this specific modification setup. A reflash might also be necessary if the ECU isn't properly calibrated for boosted operation.