Description
Engine Control Unit Bosch ME7.4.4 NFU. For Peugeot 307 1.6 16V NFU 80 kW.
This Bosch ME7.4.4 engine control unit (ECU) is a direct-fit electronic module used to manage engine operation on compatible Peugeot and Citroën petrol engines. The unit controls fuel injection, ignition timing, idle regulation and emission-related functions to ensure optimal performance and efficient combustion. Supplied with original product codes 0261207474 and 9650346080, this ECU is commonly sought by mechanics and DIY enthusiasts repairing Peugeot 307 1.6 16V NFU powerplants.
Compatibility And Typical Applications
Designed for vehicles in the Stellantis family. Typical application: Peugeot 307 1.6 16V with NFU engine code (approx. 80 kW). Always compare the product codes printed on the original ECU with the codes below to confirm fitment.
Technical Information
- Manufacturer: Bosch
- Model: Peugeot 307 1.6 16V NFU
- Product Codes: 0261207474, 9650346080
- Other Numbers: 1942E4, 1940V8, NFP
Function
The ECU continuously monitors sensors (air mass, throttle position, coolant temperature, crankshaft and camshaft position, oxygen sensors) to calculate injection timing and duration, ignition advance and emission controls. It adapts to engine load and driving conditions to maintain drivability, fuel economy and emissions compliance.
Replacement Procedure (Overview)
1. Park the vehicle on a level surface, switch off ignition and disconnect the negative battery terminal to prevent short circuits and data loss.
2. Locate the ECU (location varies by model year; commonly in the engine bay or inside the passenger compartment). Remove trim or covers as required.
3. Unplug electrical connectors carefully, release any mounting fasteners and remove the ECU.
4. Install the replacement unit, secure fasteners and reconnect connectors. Reconnect the battery.
5. Perform any required ECU programming/coding and immobilizer alignment with a suitable diagnostic tool to restore full functionality.
Installation Recommendations
Handle the ECU with care to avoid electrostatic discharge damage. Ensure connectors and pins are clean and free of corrosion before reassembly. Use an appropriate diagnostic interface to clear fault codes and to perform any required adaptations or immobilizer coding after installation. If unsure about programming or immobilizer procedures, have the unit installed by a qualified mechanic with the necessary diagnostic equipment.
Why This Part Fails Most Often
Common failure causes include moisture ingress and corrosion, thermal stress from prolonged engine bay heat cycles, voltage spikes or poor battery/charging system condition, and degraded solder joints or electronic components over time. Damaged connectors or wiring faults can produce similar symptoms. Failure typically presents as engine misfires, poor starting, limp-home mode, loss of communication with diagnostic tools or emission-related faults.
Service Life And Practical Notes
There is no fixed replacement interval for ECUs; many last the lifetime of the vehicle. Failures are more likely on older cars or vehicles exposed to damp, salty or electrically noisy environments. When replacing an ECU, matching the product codes and performing correct programming ensures reliable operation and prevents immobilizer or driveability issues.
Keywords: ECU Bosch ME7.4.4, 0261207474, 9650346080, Peugeot 307 1.6 16V NFU, Engine Control Unit.
