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Home >> Mercury >> 1994 >> Tracer LTS, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - System/Component Tests - EEC-IV (1.9L)) >> Ignition System >> EI System (High Data Rate) >> Preliminary Check

Preliminary Check

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Visually inspect engine compartment to ensure all vacuum hoses and spark plug wires are properly connected. Examine all wiring harnesses and connectors for damaged insulation, burned, overheated or damaged pins, and loose or broken conditions. Check sensor shield connector. Ensure ICM mounting screw is tight. Ensure battery is fully charged and all accessories are off during diagnosis.