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HOMESERVICE MANUALSHYUNDAI1994SCOUPE LS, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETHEORY AND OPERATIONENGINE CONTROLS - THEORY & OPERATIONCOMPUTERIZED ENGINE CONTROLSELECTRONIC CONTROL MODULE (ECM)
1994 Hyundai Scoupe LS, Automatic

Electronic Control Module (ECM)

1994 Hyundai Scoupe LS, AutomaticSECTION Electronic Control Module (ECM)

ECM receives and processes signals from data sensors and switches to control fuel delivery. ECM controls frequency and duration of injection (fuel delivery time). Fuel delivery time is modified for operating conditions such as cold starting, altitude, acceleration and deceleration.

NOTE: Components are grouped into 2 categories. First category is INPUT DEVICES, which are components that control or produce voltage signals monitored by ECM. Second category is OUTPUT SIGNALS, which are components controlled by ECM.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.