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 - SYSTEM/COMPONENT TESTS - V6INTRODUCTIONA & C CHART REFERENCES
1993 Chevrolet Cavalier Z24, 2D Coupe, Automatic
A & C Chart References
1993 Chevrolet Cavalier Z24, 2D Coupe, AutomaticSECTION A & C Chart References
NOTE:
Testing individual components does not isolate shorts or opens. Perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens. The following table provides the location of commonly used diagnostic information. These former "A" and "C" charts are now written in text and inserted into the appropriate location in the new Engine Performance workflow. To familiarize yourself with the Engine Performance workflow, see AA - USING THIS SECTION article in this section.
A & C CHART REFERENCE
| System Or Component | Diagnostic Information Location |
|---|---|
| A-1 & A-2, SERVICE ENGINE SOON Light | See DIAGNOSTIC CIRCUIT CHECK in BASIC TESTING Article |
| A-3, No Start | See NO START - ENGINE CRANKS OKAY in BASIC TESTING Article |
| A-5, Fuel Pump Relay | See FUEL SYSTEM |
| A-7, Fuel System Diagnosis | See BASIC FUEL SYSTEM CHECKS in BASIC TESTING Article |
| C-1, MAP Sensor | See ENGINE SENSORS & SWITCHES |
| C-1, Power Steering Pressure Switch | See ENGINE SENSORS & SWITCHES |
| C-1, Park/Neutral Position Switch | See ENGINE SENSORS & SWITCHES |
| C-2, Injector Balance Test | See FUEL SYSTEM |
| C-2, IAC Motor | See IDLE CONTROL SYSTEM |
| C-2, ISC Motor | See IDLE CONTROL SYSTEM |
| C-3, Canister Purge System (Fuel Evap Control) | See EMISSION SYSTEMS & SUB-SYSTEMS |
| C-4, EST Ignition Check | See BASIC IGNITION SYSTEM CHECKS In BASIC TESTING Article |
| C-5, KS Ignition Check | See IGNITION SYSTEM |
| C-6, Air Injection System | See EMISSION SYSTEMS & SUB-SYSTEMS |
| C-7, EGR System | See EMISSION SYSTEMS & SUB-SYSTEMS |
| C-8, M/T Shift Lights (M/T) | See MISCELLANEOUS CONTROLS |
| C-8, Reverse Lock-Out Solenoid (M/T) | See MISCELLANEOUS CONTROLS |
| C-8, Torque Converter Clutch (A/T) | See MISCELLANEOUS CONTROLS |
| C-10, A/C Clutch Control | See MISCELLANEOUS CONTROLS |
| C-12, Electric Cooling Fan Control | See MISCELLANEOUS CONTROLS |
| C-18, Supercharger Boost Control | See AIR INDUCTION SYSTEMS |
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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.