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 MANUALSCHEVROLET1995CAVALIER LS, 2D CONVERTIBLE, 2.2 4, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - 2.2L
1995 Chevrolet Cavalier LS, 2D Convertible, 2.2 4, Standard
Engine Controls - Tests W/Codes - 2.2L
1995 Chevrolet Cavalier LS, 2D Convertible, 2.2 4, StandardSECTION Engine Controls - Tests W/Codes - 2.2L
- Introduction
- Self-Diagnostic System
- ECM/Pcm Code Charts
- Notes
- Code 13, Open Oxygen Sensor Circuit
- Code 14, Coolant Temp Sens SGNL VLTGE Low (Hi Temp Indicated)
- Code 15, Coolant Temp Sensor Signal Voltage Low
- Code 19, Intermittent 7X Signal
- Code 21, Throttle Position Sensor Signal Voltage High
- Code 22, Throttle Position Sensor Signal Voltage Low
- Code 23, IAT Sensor Signal Voltage High (Low Temp Indicated)
- Code 24, Vehicle Speed Sensor
- Code 25, IAT Sensor Signal Voltage Low (High Temp Indicated)
- Code 26, Quad-Driver Module Error
- Code 27, Quad-Driver No. 1 Error
- Code 28, Quad-Driver No. 2 Error
- Code 31, PRNDL Error
- Code 32, EGR System Error
- Code 33, Map Sensor Signal Voltage High
- Code 34, Map Sensor Signal Voltage Low
- Code 35, IAC Idle Speed Error
- Code 43, Knock Sensor Error
- Code 44, Lean Exhaust Indication
- Code 45, Rich Exhaust Indication
- Code 51, Faulty Prom/Mem-Cal
- Code 52, Faulty Cal-PAK
- Code 53, System Voltage High
- Code 55, Pcm Error
- Code 55, Fuel Lean Monitor
- Code 66, A/C Pressure Sensor
- Code 72 Loss Of Serial Data
- Summary
- Wiring Diagrams
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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.