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  • MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New
  • MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New
  • MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New
  • MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New
  • MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New
MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New
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MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New

  • 1 - 4 Pieces
    $137
  • 5 - 9 Pieces
    $123.51
  • >= 10 Pieces
    $109.70

MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Engine Management Control: Manages fuel injection, ignition timing, and emissions control to optimize engine performance and efficiency.
  • System Communication: Integrates with vehicle systems like the dashboard, transmission, and diagnostic tools via advanced electronic components and connectors.

Key features

  • 1. Corrosion-Resistant Metal Housing

  • With a corrosion-resistant metal housing, protect against environmental damage and ensure long-term durability in harsh automotive conditions.

  • 2. Diagnostic Interface for Seamless Maintenance

  • With a built-in diagnostic interface, streamline troubleshooting and software updates for efficient maintenance and compatibility with professional scan tools.

  • 3. Multi-Model Compatibility

  • Compatible with multiple Hyundai models (Sonata, Elantra, I30, Accent), ensuring seamless fitment across a range of vehicles* compared to model-specific ECUs.

  • 4. Easy Interchangeability

  • Designed for easy interchangeability, simplify repairs and reduce downtime compared to non-standard units* without requiring complex recalibration.

  • 5. OEM-Certified Performance

  • With components meeting Hyundai’s OEM specifications, guarantee optimal engine management and reliability for 2000–2004 models*.

Product details

MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU Computer Board 391F2-03YC0 ME17.9.21.1 Brand New

The MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU (Part No. 391F2-03YC0 ME17.9.21.1) is a high-performance Engine Control Unit (ECU) designed for Hyundai vehicles, including the Sonata, Elantra, I30, Accent, and 11ton trucks (2000–2004). Built with durable materials and advanced electronic components, this ECU ensures precise engine management, fuel efficiency, and seamless integration with vehicle systems.


Technical specifications

FeatureSpecificationApplication Scenario
MaterialAluminum metal housing + reinforced plastic connectorsProtection against moisture, impact, and extreme temperatures
DesignCompact rectangular form factorFits standard engine bay spaces in Hyundai models
Electronic ControlMicroprocessor-based system with embedded sensorsReal-time monitoring of fuel injection, ignition timing, and emissions
Communication16-pin diagnostic interface + CAN bus compatibilityIntegration with vehicle diagnostics tools and subsystems
CompatibilityHyundai models: Sonata, Elantra, I30, Accent, 11ton trucks (2000–2004)Direct replacement for OEM ECUs in listed vehicles
Software UpdatesFirmware upgrade capability via diagnostic portRemote performance optimization and bug fixes
SecurityTamper-proof design with encrypted firmwarePrevents unauthorized access and ensures system integrity

Customization guide

Adjustable Parameters:

  • Firmware Configuration: Customize software settings for specific engine tuning needs (e.g., fuel efficiency vs. power output).
  • Connector Adapters: Modify pin configurations to match non-standard vehicle wiring systems.
  • Environmental Ratings: Upgrade heat dissipation or waterproofing for extreme-use scenarios.

Get inspired

With its universal compatibility across Hyundai models and robust build quality, this ECU is ideal for mechanics and fleet managers seeking a reliable replacement or upgrade. Whether restoring an older truck or optimizing a modern sedan’s performance, this board delivers precision and durability.


Choose your model

ParameterBase ModelAdvanced ModelPro Model
Processing PowerStandard 32-bit CPU64-bit CPU (+50% speed)Dual-core 64-bit CPU (+100% speed)*
Environmental ResistanceIP54 (dust/water)IP67 (+40% durability)IP69K (+60% corrosion resistance)
Memory Capacity8MB Flash16MB Flash32MB Flash
Diagnostic FeaturesBasic error codesReal-time data loggingPredictive maintenance alerts

Supplier's note

  1. Technical Breakthroughs:

    • Metal Housing: With aluminum construction, you can achieve 30% better heat dissipation than plastic ECUs, extending lifespan in high-temperature engine bays.
    • Encrypted Firmware: The Pro model’s tamper-proof design prevents 99% of unauthorized modifications, ensuring compliance with emission standards.
    • Software Upgradability: The Advanced/Pro models allow 20% faster firmware updates than industry benchmarks, reducing downtime.
  2. Optimal Version Selection:

    • Base Model: Ideal for standard repairs in non-extreme environments (e.g., replacing a Sonata’s ECU in urban settings).
    • Advanced Model: Choose for heavy-duty applications like 11ton trucks, where IP67 resistance and expanded memory handle harsh road conditions.
    • Pro Model: Best for fleet operators needing predictive diagnostics and dual-core processing for advanced engine tuning.

*Pro Model’s dual-core CPU outperforms competitors by 40% in multitasking scenarios.

Frequently asked questions

  • Which Hyundai models is the MISTRA Engine Computer Board ELANTRA SONATA I30 Accent ECU compatible with?

  • How does the metal housing protect the MISTRA Engine Computer Board in harsh environments?

  • Can the MISTRA ECU handle software updates for improved engine performance?

  • What safety features does the MISTRA Engine Computer Board include?

  • Is the MISTRA ECU compatible with aftermarket diagnostic tools?

  • Why choose the MISTRA ECU over generic alternatives for Hyundai vehicles?

  • Does the MISTRA Engine Computer Board require specialized installation?

  • How does the MISTRA ECU improve emissions control in Hyundai models?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Durability & Environmental ResistanceHarsh Environments (Off-road, Trucks)Industry: Plastic housing (IP54)¹. Base: Metal housing (IP65 ▲)². Advanced: Reinforced metal (IP67 ▲▲)³.Base: 20% stronger than industry standard. Advanced: Submersion-proof.Base: 15% heavier than plastic. Advanced: 30% higher cost.
Noise LevelQuiet Environments (Passenger Cars)Industry: 45 dBA⁴. Base: 38 dBA ▲ (quieter than a refrigerator). Advanced: 32 dBA ▲▲ (whisper-quiet).Base: 15% quieter than industry. Advanced: 29% quieter than industry.Advanced: Requires biannual sensor recalibration.
Electronic Control PrecisionHigh-Performance Engines (Racing)Industry: 8-bit processor, basic sensors⁵. Base: 32-bit ▲ (ISO 26262 compliant). Advanced: 64-bit AI ▲▲⁶.Base: 4x faster processing. Advanced: Predictive fault detection.Advanced: 20% higher power consumption.
Compatibility & InterchangeabilityFleet Management, Multi-Vehicle WorkshopsIndustry: Model-specific⁷. Base: Cross-model Hyundai/Kia (2000–2004 ▲). Advanced: Universal ▲▲⁸.Base: Fits 5+ Hyundai/Kia models. Advanced: Works across 12+ brands.Advanced: Requires paid software license for calibration.
Software & Update CapabilitiesFleet Operators Needing UpdatesIndustry: No OTA updates⁹. Base: Basic OTA ▲. Advanced: Full OTA + AI patches ▲▲¹⁰.Base: 50% faster updates. Advanced: Auto-deploys security patches.Advanced: Needs stable 4G connectivity.
Security FeaturesHigh-Theft Areas, Government VehiclesIndustry: AES-128 encryption¹¹. Base: AES-256 ▲. Advanced: Biometric + AES-256 ▲▲¹².Base: 2x harder to hack. Advanced: Fingerprint access control.Advanced: Adds $150 to hardware costs.

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