Description
Magneti Marelli Control Unit For FAP (Diesel Particulate Filter) Injection.
This Magneti Marelli DPF/Injection ECU (EAS300.01) is designed for Citroën and Peugeot diesel engines and controls fuel injection parameters together with Diesel Particulate Filter (FAP/DPF) regeneration strategies. Ideal for professional workshops and experienced DIY mechanics, this unit restores correct DPF management, helps ensure reliable regeneration cycles and improves drivability and emissions behavior when fitted to compatible vehicles. The part is frequently searched by its product codes, so customers often locate it using the numbers listed below.
Technical Information
- Manufacturer: Magneti Marelli
- Model(s): Citroën C5, Citroën C8, Peugeot 307, Peugeot 807
- Product Codes: 9647428280-01, 09733309901, EAS300.01
- Other Numbers: 1525CY, Stellantis (Citroën/Peugeot) References
Function And Benefits
The unit Supervises Fuel Injection And DPF Regeneration. It Receives Input From Sensors (DPF Differential Pressure, Exhaust Temperature, Engine Speed And Load) And Controls Injection Timing, Post-Injection Events And Regeneration Requests To Burn Soot From The Filter. Replacing A Faulty ECU Can Restore Proper Regeneration, Reduce Warning Lights, Improve Fuel Economy And Lower Exhaust Emissions.
Recommended Installation
Disconnect The Battery Before Starting. Locate The Original ECU (Commonly Found In The Engine Bay Mounted To The Firewall Or Near The Intake Area Depending On Model). Remove Protective Covers And Unplug Electrical Connectors Carefully To Avoid Damaging Pins. Mount The Replacement Unit Securely, Reconnect Connectors And Restore Battery Power. Clear Fault Codes With A Diagnostic Tool And Verify DPF Sensor Signals. In Many Cases The ECU May Require Programming Or Coding With OEM Or Compatible Diagnostic Equipment To Match Vehicle Immobilizer/Engine Parameters—perform This Step According To Workshop Procedures. After Installation, Run A Road Test And Force Regeneration If Needed To Confirm Normal Operation.
Most Common Cause Of Failure
Failures Typically Result From Long-Term Soot Accumulation And Repeated Failed Regenerations, Water Ingress Or Corrosion Of Connectors, Thermal Stress From High Exhaust Temperatures, Electrical Surges Or Damaged Wiring Harnesses, And Faulty Sensors That Force The ECU Into Error Modes. Frequent Short Urban Trips That Prevent Complete DPF Regeneration Also Increase Risk Of Premature Unit Or Filter Problems.
Parts Are Often Identified By The Product Codes Shown Above. Use These Numbers When Searching For A Replacement To Improve The Chance Of Choosing The Correct Unit For The Vehicle.
