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Home >> Chevrolet >> 1978 >> Luv 4WD, Automatic Trans, Trans Mfr CD 200C >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Coasting Richer System >> Testing >> Engine Speed Sensor >> 1976-78 California Models
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1976-78 California Models

Disconnect engine speed sensor. Connect jumper wire between Black, Black/Red, and Black/Yellow terminals. With engine above 1500 RPM, check for continuity between Black/White color coded terminals. Engine speed sensor is okay if continuity exists.

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