Description
Product Overview
The ECU Sagem S2000-4A is a vital engine control unit designed for Citroën and Peugeot vehicles, notably the Peugeot 206 with a 1.4i engine. This electronic control unit manages the fuel injection and engine timing to guarantee efficient engine performance and emissions control. It is often sought after by professional mechanics and DIY automotive enthusiasts under its product numbers due to its reliability and compatibility.
Function and Importance
This ECU controls various engine parameters, including fuel delivery, ignition timing, and air-fuel ratio. Proper function of the ECU ensures smooth engine operation, reduces fuel consumption, and minimizes harmful emissions. Over time, ECUs can fail due to electronic faults, heat damage, or moisture ingress, causing engine starting issues, poor performance, or increased fuel consumption.
Replacement Tips
Replacing the ECU typically involves disconnecting the vehicle’s battery, removing the faulty ECU by unplugging connectors, and installing the new unit in the reverse order. After replacement, the new ECU may require programming or synchronization with the vehicle’s immobilizer system. It is essential to verify compatibility by cross-referencing product codes before installation.
Technical Information
- Manufacturer: Sagem
- Model: Peugeot 206 1.4i
- Product Codes: 9644625680, 9646988680, 1940W5, 1940W6, 194456
- Additional Numbers: S2000-4A
Compatibility and Applications
This ECU unit is primarily used in PSA group vehicles including Citroën and Peugeot models with compatible engine management systems, ensuring optimal engine response and reliability. Always confirm compatibility using product or OEM numbers before purchase.
