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.
System Outline
- Fuel Injection Control (Independent Injection Type)
The ECM outputs the injection signal to the injector after the basic injection time is calculated. This calculation is based on the condition of the engine and is corrected according to the E.F.I engine coolant temperature sensor signal.
- Ignition Control
The engine control module outputs the ignition signal to the igniter after the basic ignition time is calculated. This calculation is also based on the condition of the engine 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
The malfunction of sensors and actuators is diagnosed, and the fail safe function is activated, according to the signals input to and output by the 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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