Hyundai Accent: Engine Control System / Variable Intake Solenoid (VIS) Valve
| Engine condition | VIS valve | Operation |
| Medium speed | Closed | Increasing engine performance in low engine speed by reducing intake interference among cylinders |
| Low / High speed | Open | Minimizing intake resistance by shortening intake manifold length and increasing area of air entrance |
| Item | Specification |
| Coil resistance (Ω) | 30.0 ~ 35.0 [20°C (68°F)] |
1.Turn the ignition switch OFF.
2.Disconnect the VIS valve connector.
3.Measure resistance between VIS valve terminals 1 and 2.
Specification : Refer to "Specification"
1.Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.Disconnect the VIS valve connector (A).
3.Disconnect the vacuum hoses (B) from the valve.
4.Remove the installation bolts, and then remove the VIS valve (A) from the surge tank.
Variable intake solenoid valve installtion bolt :9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
• Install the component with the specified torques.
• Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
• Be careful of foreign material not to flow into the valve.
1.Install in the reverse order of removal.
Other information:
- Schematic Diagram - Terminal Function NoTerminal function 1- 2C-CAN LOW 3C-CAN HIGH 4GND 5IGN1 6- 7- 8- - Inspection FCA function ON / OFF switch was included to USM (User Setting Menu) and the state of the factory is ON.When the IGN ON, maintain ON condition by default. And does not reflect the driver settings when next IGN ON. - Specifications Brake oil : DOT 3 or DOT 4 Reservoir capacity (cc) MAX LEVELA + B + C + D + E409 ± 20 ON LEVEL (MIN LEVEL)(H = 23 ± 1.5 mm)B + C + D138 ± 10 PARTIAL LEVELC (PRI)28 D (SEC)31 CLUTCH LEVELE12 - Replacement 1.Disconnect the battery (-) terminal. 2.Remove the brake fluid level sensor connector. 3.Remove the reservoir cap and remove the brake fluid from the reservoir tank using the cleaner.
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