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 MANUALSMITSUBISHI1991PRECIS L4-1468CC 1.5L SOHCREPAIR AND DIAGNOSISTESTING AND INSPECTION
1991 Mitsubishi Precis L4-1468cc 1.5L SOHC
Repair and Diagnosis: Testing and Inspection
1991 Mitsubishi Precis L4-1468cc 1.5L SOHCSECTION Testing and Inspection
The check engine lamp will be illuminated when the ignition switch is in the ON position with engine not operating. When engine is started, the Check Engine lamp should go OFF. If lamp remains ON, a code has been stored by the Electronic Control System. After diagnosis and repair, place ignition switch in OFF position, then clear codes stored in the Electronic Control System memory by disconnecting the the battery ground cable for at least 16 seconds.
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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.