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PAJ118881 / MB2798003442 / PAJ1 / K4238 Mazda 3 2.0L Petrol / MHEV Engine Control Unit ECU 2019–2024.
This is a genuine Engine Control Unit (ECU) suitable for Mazda 3 models from 2019 to 2024 equipped with 2.0L Petrol and Mild Hybrid (MHEV) systems. It is an original Mazda module, designed to maintain factory performance specifications including ignition timing, fuel mapping, emissions control and hybrid energy management.
If your vehicle is experiencing no-start conditions, hybrid malfunction messages, poor acceleration, or engine warning lights, replacing the ECU with this compatible OEM unit restores proper communication between the powertrain, hybrid battery, and onboard control modules.
Part number matching is mandatory to ensure correct installation and system synchronization.
| Make | Model | Year Range | Engine | System | Part Number |
|---|---|---|---|---|---|
| Mazda | Mazda 3 | 2019–2024 | 2.0L Petrol | MHEV (Mild Hybrid) | PAJ1-18881 |
| Mazda | Mazda 3 | 2019–2024 | 2.0L Petrol | MHEV (Mild Hybrid) | MB2798003442 |
Programming and coding will be required after installation.
Must match vehicle VIN and part number before purchase.
Designed for factory hybrid petrol architecture with original wiring and sensors.
Mazda 3 2.0 MHEV ECU PAJ1-18881
Mazda 3 hybrid petrol engine control module 2019–2024
OEM Mazda ECU MB2798003442
Mazda 3 ECU replacement mild hybrid
Mazda 3 2.0L engine computer PAJ1 18881
Mazda MHEV powertrain ECU module
Mazda 3 electronic control unit original
Mazda 3 engine ECU programming required
Mazda 3 hybrid ECM 2020–2023
Mazda 3 ECU petrol mild hybrid unit
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