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Home >> Porsche >> 1971 >> 911 T, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> PORSCHE 911T Engine Modification >> Maintenance >> Engine Rpm Switch >> RPM Switch Check

RPM Switch Check

Connect a test lamp to terminal 30b and to ground. When engine speed exceeds 1350 RPM, test lamp should light. When engine speed falls below 1300 RPM, test lamp should go out.