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.
2004 Hyundai Accent BaseFACTORY OEM SERVICE PROCEDURE
Emission Control System: General: Specifications
General Specifications
| COMPONENTS | FUNCTION | REMARKS |
|---|---|---|
| Crankcase Emission System | HC reduction | |
| Positive Crankcase Ventilation (PCV) | Variable flow rate type | |
| Evaporative Emission System | HC reduction | |
| Evaporative emission canister | ||
| EVAP canister Purge Solenoid Valve | Duty control solenoid valve | |
| Exhaust Emission System | ||
| MFI system (Air-fuel mixtrue control device) | CO, HC, NOx reduction | Heated oxygen sensor |
| Three-way catalytic converter | CO, HC, NOx reduction | feedback type Monolithic type |
| MFI : Multiport Fuel Injection | ||
| EVAP : Evaporative Emission | ||
Factory Service Tools
Use the Manual With the Right Hardware
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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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