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Home >> Volvo >> 1988 >> 780 AW71 >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH LH (Non Turbo) >> Testing - VOLVO >> Component Tests >> Fuel Injection Relay
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Fuel Injection Relay

Connect a voltmeter between ECU terminal No. 9 and ground. Connect a jumper wire between ECU terminal No. 21 and ground. Relay should close and complete circuit. Voltmeter should indicate battery voltage.

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