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    Testing Ignition Amplifier / Volvo 740, 1986 Archived Message

    Posted by Ian Waring on October 8, 2008, 10:41 pm

    Can anyone advise on checking the volt drop on an Ignition Amplifier?

    Test book says to check from coil-negative terminal, with engine running. Voltage should not exceed 2 volts.

    I used my Volt Meter to test the min and max readings. Max was approx 14 volts, min 1 volt.

    When the coil is switched off, is this when the min 1 volt is obtained?

    Am I correct in the way I have carried out this test?

    Not sure if my new Pico Scope will do this test. My old CMT500 carried out test automatically.

    Thanks, Ian

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