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Home >> Volvo >> 1994 >> 940 Base, 4D Sedan, AW71L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Electronic Control Unit - Fuel Injection (850) >> Preliminary Check & Measuring Unit Installation
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Preliminary Check & Measuring Unit Installation

  1. Remove ECU cover located in right front engine compartment. Remove both fuel injection and distributor ignition ECUs. Press adapter into ECU base. Position adapter lead at rear of ECUs and thread through slot next to distributor ignition module.
  2. Press distributor ignition ECU into position first to avoid damage to adapter lead. Press fuel injection control unit, with adapter connected, into connector in bottom of ECU box. Connect measuring unit to adapter 60-pin connector.
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