Chevrolet Spark MK1 F4819C ECU 1.0 995 cc Petrol B10D1 LMT 2005 - 2010 5 MTM 5 Door Hatchback MF4819C M300 C,1CP48

Chevrolet Spark MK1 Plus F4819C 12 REG 67bph 4AQ Y4M 1ST Engine Control Unit Ecu 96958816:1476374:5WY1K12A:25182026:25182026AALJ:25182026 AALJ:GM 25182026:GM25182026:D52:0310:86AALJB:1K12A 0073 0310 1.0 995 cc B10D1 LMT 5 Speed Manual MF4819C M300 C,1CP48 2005,2006,2007,2008,2009,2010 Petrol PLUS MK1 12 REG 67bph 4AQ Y4M 1ST v14173-33016

Additional Info

Engine Control Unit (ECU) for Chevrolet Spark MK1 Plus (M300) – 1.0 B10D1 (67 BHP) – 2005-2012

ECU Part Details:

• Part Name: Engine Control Unit (ECU)
• OEM Part Numbers:
  • 96958816
  • 1476374
  • 5WY1K12A
  • 25182026
  • 25182026AALJ
  • GM 25182026
• Manufacturer Codes:
  • D52:0310
  • 86AALJB
  • 1K12A 0073 0310
• Condition: Used / Genuine OEM Component

Vehicle Compatibility:

• Make & Model: Chevrolet Spark MK1 Plus (M300)
• Trim Level: Plus
• Engine: 1.0L B10D1
• Displacement: 995 cc
• Power Output: 67 BHP
• Fuel Type: Petrol
• Transmission: 5-Speed Manual
• Chassis Code: MF4819C
• Platform: M300
• Year Range: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
• Registration Compatibility: 12 Reg

ECU Function & Importance

The ECU (Engine Control Unit) is the brain of the vehicle, responsible for managing:
? Fuel Injection & Ignition Timing – Optimizing performance and fuel efficiency.
? Emissions Control – Ensuring compliance with environmental standards.
? Engine Safety & Diagnostics – Monitoring critical engine functions and storing fault codes.
? Communication with Other Systems – Interfacing with the ABS, immobilizer, and transmission.

Common ECU Fault Codes & Issues in Chevrolet Spark MK1 (M300)

1. Engine Performance & Fuel System Faults

? P0171 – System Too Lean (Bank 1)

• Cause: Air-fuel mixture imbalance due to vacuum leaks, MAF sensor failure, or fuel injector issues.
• Solution: Check for vacuum leaks, clean or replace the MAF sensor, inspect fuel injectors.

? P0300 – Random/Multiple Cylinder Misfire

• Cause: Faulty ignition coils, spark plugs, or fuel injectors.
• Solution: Replace defective ignition coils, spark plugs, or injectors.

? P0420 – Catalyst System Efficiency Below Threshold (Bank 1)

• Cause: Faulty oxygen sensor or failing catalytic converter.
• Solution: Check O2 sensor readings, inspect the catalytic converter.

? P0128 – Coolant Thermostat Below Regulating Temperature

• Cause: Stuck thermostat, low coolant level, or faulty coolant sensor.
• Solution: Replace the thermostat, top up coolant, or replace the sensor.

2. ECU Communication & Electrical Issues

? U0100 – Lost Communication with ECM/PCM

• Cause: Wiring or connection issue between ECU and other modules.
• Solution: Inspect wiring harness, battery voltage, and ground connections.

? P0606 – ECM Processor Fault

• Cause: Internal ECU failure or software corruption.
• Solution: Perform an ECU reset, reprogram the ECU, or replace it if necessary.

ECU Fitment Guide & Precautions

1. How to Install or Replace the ECU:

? Step 1: Disconnect the battery (negative terminal first).
? Step 2: Locate the ECU module (usually under the dashboard or engine bay).
? Step 3: Unplug the wiring harness connectors and remove mounting bolts.
? Step 4: Install the replacement ECU, ensuring all connectors are securely attached.
? Step 5: Reconnect the battery and perform an ECU reset or reprogramming if required.

2. Precautions Before ECU Installation:

? Check Compatibility: Ensure the part number matches the original ECU.
? ECU Programming: Many ECUs require immobilizer coding and reprogramming at a Chevrolet dealer or specialist.
? Avoid Electrical Damage: Do not connect or disconnect the ECU while the battery is connected.
? Perform an OBD-II Scan: After installation, scan for fault codes and clear them if necessary.

Why Choose a Genuine Chevrolet ECU?

? OEM Quality & Reliability – Designed for Chevrolet Spark MK1 with the 1.0 B10D1 engine.
? Perfect Fit & Functionality – Ensures smooth communication with sensors and actuators.
? Enhanced Performance & Fuel Economy – Optimized ignition and fuel management.

For further assistance, provide VIN, part number, or fault codes to confirm compatibility and troubleshooting steps. ??