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 MANUALSSUBARU1989GL-10 4D SEDAN, 1.8 4REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMTESTS W/CODES - MPFICODE CHARTSTROUBLE CODE MENU
1989 Subaru GL-10 4D Sedan, 1.8 4
Trouble Code Menu
1989 Subaru GL-10 4D Sedan, 1.8 4SECTION Trouble Code Menu
TROUBLE CODE MENU
| Code | Description |
|---|---|
| Code 11 | Crank Angle Sensor |
| Code 12 | Starter Switch |
| Code 13 | Crank Angle Sensor |
| Code 14 | Fuel Injector 1.8L Motor |
| Code 21 | Water Temperature Sensor |
| Code 22 | Knock Sensor 2.7L Motor |
| Code 23 | Airflow Meter |
| Code 24 | By-Pass Air Control Valve |
| Code 25 | Fuel Injector 2.7L Motor |
| Code 31 | Throttle Sensor 1.8L Motor |
| Code 32 | O2 Sensor |
| Code 33 | Speed Sensor |
| Code 35 | Purge Control Solenoid Valve |
| Code 41 | Fuel System |
| Code 42 | Idle Switch |
| Code 51 | Neutral Switch (M/T) |
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.