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.
Fuel Injection System - MITSUBISHI ECI: Description
Electronically Controlled Injection (ECI) is a computerized emission, ignition and fuel control system. The ECI system adjusts engine operation to lower exhaust emissions while maintaining efficient driveability. The Electronic Control Unit (ECU) is the foundation of the ECI system. The ECU controls many of the related systems to continuously adjust engine operation.
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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.