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Bosch ECU 0261203498 / 00077971390 – Lancia/Fiat Y10 1.1 L Petrol
OEM engine control unit from Bosch, part number 0261203498 (Bosch) and 000 779 713 90 (Fiat/Lancia). Also referenced as 26SA3710 within its product family.
Belongs to Bosch’s MA1.7 ECU family (series code 0 261 203 498), commonly used in small 1.1 L engines.
Typically sold as used/second‑hand, in original condition (“never repaired”) and locked to its donor vehicle—requiring specialist programming or cloning before installation .
Primarily used on Lancia Y10 Mk3 (1989–1995) and its Fiat/Autobianchi Y10 1.1 L petrol equivalent (engine code 176B2.000, 54 hp).
Confirm exact fit based on your vehicle’s build year, engine code, and OEM part number—small revisions in the Bosch label may affect compatibility.
Locked units must be bench‑programmed or flashed, matching VIN, immobilizer, and key data from your original ECC—typically done with specialized equipment or by professional ECU services .
Some rebuilders (e.g., EcuDiag, eBay Italy) offer exchange services, delivering a pre‑programmed ECU if you send in your original .
Feature | Details |
---|---|
Bosch Part No. | 0261203498 (0 261 203 498) |
Fiat/Lancia No. | 000 779 713 90 / 7797139 |
Family | Bosch MA1.7 ECU |
Vehicle Fit | Lancia/Fiat Y10 (1989–1995), 1.1 L petrol (176B2.000, 54 hp) |
Condition | Used OEM, locked, unmodified |
Programming Need | Yes—immobilizer lock requires professional cloning/flashing |
Locked OEM unit is cost‑effective but demands programming before use—you'll need access to Bosch‑Fiat diagnostic tools or a trusted ECU specialist.
If available, opt for a cloned or exchange‑programmed unit for plug‑and‑play ease—less hassle, but should be budgeted accordingly.
Always verify the full part number labels on both donor and replacement ECUs; even minor suffix code differences can cause mismatch issues.
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