Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1993CAVALIER Z24, 2D COUPE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - 3.1LECM/PCM CODE CHARTSCODE 41 - CYLINDER SELECT ERROR (3.1L)NOTES
1993 Chevrolet Cavalier Z24, 2D Coupe, Automatic
Code 41 - Cylinder Select Error (3.1L): Notes
1993 Chevrolet Cavalier Z24, 2D Coupe, AutomaticSECTION Notes
ECM used for this engine can also be used for other engines. Difference is in MEM-CAL. If a Code 41 sets, incorrect MEM-CAL has been installed or MEM-CAL is faulty and must be replaced.
NOTE:
Test number refers to number on diagnostic chart.
- Turn ignition off, and clear codes. Start engine, and run it for one minute. If code resets, check for faulty connection due to MEM-CAL not locked in place or incorrectly installed. If code does not recur, code is intermittent. See DIAGNOSTIC AIDS.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.