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Home >> Volvo >> 1989 >> 780 GLE, AW71L >> Repair and Diagnosis >> Engine Performance >> System >> Tests W/Codes - Non-Turbo >> Entering Self-Diagnostics (Ignition System) Control Functions >> Control Function 3 (Testing EGR Converter - CALIFORNIA Only)
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Control Function 3 (Testing EGR Converter - CALIFORNIA Only)

In this function, the diagnostic unit activates EGR converter. You find out if the component is working by listening or putting a hand on it when it is activated.

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