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Home >> Chevrolet >> 1980 >> Luv RWD, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Exhaust >> Catalytic Converter And Over-Temperature Control System >> Testing >> Engine Speed Sensor
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Engine Speed Sensor

Connect "BY" and "LgW" wiring terminals at speed sensor connector, using jumper wires. Start engine and check for voltage between "Lg" and "B" terminals. Voltage should drop to zero when engine speed is over 2100-2300 RPM.