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Home >> Mazda >> 1988 >> 626 Base, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> System >> EGI Control System >> Diagnosis & Testing >> Component Testing >> Knock Control System (Turbo Only)

Knock Control System (Turbo Only)

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  1. Connect Self-Diagnostic Checker (49 H018 9A1 ) and ground test connector lead. Turn ignition on.
  2. Tap lightly on right engine hanger. Ensure monitor lamp on checker flashes. If not, connect a good knock sensor and recheck.
  3. If test results remain the same, replace knock control unit.
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