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.
Engine Control
- Fuel Injection Control (Independent Injection Type)
The ECM outputs an injection signal to the injector after the basic injection time has been calculated which is based on the E.F.I. engine condition and is corrected according to the engine coolant temperature sensor signal.
- Ignition Control
The engine control module outputs an ignition signal to the igniter after the basic ignition time has been calculated which is based on the engine condition and is corrected according to the engine coolant temperature sensor signal.
- Engine Speed Control
An electronic throttle control system has been adopted, which conducts first idle speed control according to the engine coolant temperature and idle speed control after warm-up.
- Diagnosis Control
Sensor and actuator malfunctions are diagnosed, and the fail-safe function is activated, based on the input and output signals of ECU.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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