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Test 2: Fuel Injectors

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  1. Check for fuel delivery at injectors. If one or more injectors are not operating correctly, place finger on injector and feel for injector pulses (vibration).
  2. If no pulses are detected, check circuits to injectors. Repair circuits as necessary. If circuits are okay, use BMW service test unit to check injector resistance. Replace defective fuel injectors as necessary.
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