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 MANUALSCHEVROLET1983CITATION 2D HATCHBACK, 2.8 X, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFEEDBACK CARBURETOR TESTS W/CODESTROUBLE CODE ID CHART
1983 Chevrolet Citation 2D Hatchback, 2.8 X, Automatic
Trouble Code Id Chart
1983 Chevrolet Citation 2D Hatchback, 2.8 X, AutomaticSECTION Trouble Code Id Chart
ECM TROUBLE CODE IDENTIFICATION
| Code | Circuit Affected |
|---|---|
| 12 | No reference pulses to ECM |
| 13 | Oxygen Sensor Circuit |
| 14 | Coolant sensor circuit shorted/low voltage |
| 15 | Coolant sensor circuit open/high voltage |
| 21 | Throttle position sensor circuit open/low voltage |
| 23 | Open or grounded M/C solenoid circuit |
| 24 | Vehicle speed sensor circuit |
| 32 | BARO sensor circuit low |
| 34 | MAP-vacuum sensor circuit voltage wrong/low |
| 35 | ISC switch circuit shorted |
| 41 | No dist. ref. pulse at specified vacuum |
| 42 | EST by-pass circuit grounded/open Or ESC retard signal too long |
| 43 | Voltage At ECM Too Low |
| 44 | Lean oxygen sensor indication |
| 44 & 45 | At same time, faulty oxygen sensor |
| 45 | Rich oxygen sensor indication |
| 51 | Faulty PROM or improper PROM installation |
| 54 | Shorted M/C solenoid or faulty ECM |
| 55 | Grounded +8 volts, voltage reference, faulty oxygen sensor or ECM |
RENDER: 1.0x
NO RELATED
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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.