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Home >> Oldsmobile >> 1992 >> Achieva S, 4D Sedan, 2.3 D >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Engine Controls - System/Component Tests >> Knock Sensor

Knock Sensor

Disconnect knock sensor harness connector. Using an ohmmeter, measure knock sensor resistance between sensor terminal and engine block. Resistance should be 3300-4500 ohms. Connect DVOM between sensor terminal and ground. Set voltmeter to 2-volt AC scale. Start and idle engine. Tap on engine block near sensor. A signal should be indicated on voltmeter. If no signal is indicated, replace knock sensor. Also, see TIMING CONTROL SYSTEMS  under IGNITION SYSTEM. Also see Code 43 in appropriate article; for 2.3L PFI see TESTS W/CODES - 2.3L PFI , for 3.3L PFI see TESTS W/CODES - 3.3L PFI in this section.

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