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Home >> Isuzu >> 1984 >> Impulse Automatic >> Repair and Diagnosis >> Engine Performance >> System >> I-TEC Control System >> Testing >> Test 9 - Detonation Sensor (Code 66)
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Test 9 - Detonation Sensor (Code 66)

  1. Disconnect terminals at MCU and at detonation sensor. Check circuits for shorts and grounds.
  2. The resistance across the detonation sensor terminals should be 650 - 800 ohms. Replace sensor if ohms reading is different.
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