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Engine Controls - System/component Tests: Removal & Installation Volvo 850 I

Testing & Diagnostics ~167 words

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.
  1. Turn ignition switch to OFF position. Distributor ignition ECU is located in right side of engine compartment. Remove ECU cover. Disconnect distributor ignition ECU connector. Visually inspect all terminal connector sleeves to ensure no terminals are damaged.
  2. To install measuring unit, remove distributor ignition ECU. Press adapter onto distributor ignition ECU and pull lead upward through slot beside module. Press distributor ignition ECU, with adapter connected, into connector in bottom of ECU box. Connect measuring unit to adapter 60-pin connector.

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