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Mercury MerCruiser  |  SKU: 8M002429

8M002429 | Genuine Mercury MerCruiser® Engine Control Module

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Description:
Engine Control Module 8M002429 (also called ECU) — it’s the computer that manages various engine operations (fuel injection, ignition timing, emissions control, etc.). Engine Control Module 8M0022622 For Mercury Marine outboard 1.0L, 4-cylinder EFI

Part Number: 8M002429
Condition: New
Manufacture/Brand: Mercury MerCruiser

Fits 8M002429 For

  • Mercury Marine outboard
  • 1.0L, 4-cylinder EFI
  • 40 HP/50HP (30 kW/37kW) applications


Purpose of using 8M002429:

  • Control fuel injection — determines how much fuel the engine needs.
  • Control ignition timing — decides when the spark plugs should fire.
  • Manage air–fuel mixture — keeps combustion efficient.
  • Control emissions — helps reduce harmful exhaust gases.
  • Improve fuel economy — adjusts engine operation for better efficiency.
  • Maintain engine performance — responds to conditions such as engine speed, temperature, throttle position, and load.
  • Detect problems — monitors sensors and stores diagnostic trouble codes (DTCs) when something goes wrong.
  • Control other engine-related systems — such as idle speed, variable valve timing, turbocharger controls, and cooling fans, depending on the vehicle.


Signs of a Bad Engine Control Module 8M002429:

  • Check Engine Light that stays on or comes on unexpectedly
  • Engine won't start or starts and then stalls
  • Rough or unstable idle
  • Engine misfires or runs poorly
  • Poor acceleration or reduced engine power
  • Poor fuel economy
  • Transmission shifting problems on vehicles where the ECM communicates with the transmission
  • Electrical issues such as multiple unrelated warning lights or accessories behaving strangely
  • Intermittent stalling while driving
  • No communication with a diagnostic scanner (OBD-II)


About the Manufacturer – Mercury MerCruiser:

Mercury MerCruiser is a leading marine engine brand known for its reliable, high-performance inboard and sterndrive power systems. Built by Mercury Marine, MerCruiser engines are widely used in recreational boats for their strong acceleration, smooth operation, and durability. The brand is recognized for combining advanced engineering with easy maintenance, making it a popular choice among boaters and manufacturers worldwide.

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