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.
Computerized Engine Controls: Notes
All models use a Multiport Fuel Injection (MFI) system. This system consists of sensors which detect engine conditions. The Engine Control Module (ECM) controls the system based on signals from these sensor and from actuators which operate under the control of the ECM. ECM controls fuel injection, idle speed, ignition timing, emission controls and other functions. ECM is equipped with several diagnostic test modes which simplify troubleshooting when a problem occurs.
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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