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Home >> Volvo >> 1987 >> 240 GL, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH LH JETRONIC II >> Introduction >> Compression Test Or Similar Service Checks
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Compression Test Or Similar Service Checks

Disconnect wire from terminal 1 on ignition coil (arcing from fuel/injection system HT harness can damage control units). Disconnect wires from injectors, this prevents flooding engine, oil contamination etc.

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