Hyundai Elantra: Emission Control System / General Information
Description and Operation
| Description |
| - |
The Crankcase Emission Control System prevents blow-by gas
from releasing into the atmosphere. This system recycles gas back into
the intake manifold (Closed Crankcase Ventilation Type). |
| - |
The Evaporative Emission Control System prevents evaporative
gas from releasing into the atmosphere. This system burns gas at
appropriate engine operating condition after gathering it in the
canister. |
| - |
The Exhaust Emission Control System converts the three
pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of
nitrogen (NOx)] into harmless substances by using the 3-way catalytic
converter.
|
Specifications
| Specifications |
| Item | Specification |
| Coil Resistance (?) | 22.0 ~ 26.0 [20°C(68°F)] |
| Pressure [kPa (kgf/cm?, in H2O)] | Output Voltage (V) |
| -6.67 (-0.068, -26.8) | 0.5 |
| 0 | 2.5 |
| +6.67 (0.068, 26.8) | 4.5 |
| Item | Specification |
| Coil Resistance (?) | 19.5 ~ 22.5 [20°C(68°F)] |
| Tightening Torques |
| Item | kgf.m | N.m | lb-ft |
| Positive crankcase ventilation valve installation | 0.2 ~ 0.3 | 1.96 ~ 2.94 | 1.45 ~ 2.17 |
| Canister installation bolt/nut | 2.0 ~ 3.0 | 19.6 ~ 29.4 | 14.5 ~ 21.7 |
Troubleshooting
| Troubleshooting |
| Symptom | Suspect area |
| Engine will not start or hard to start | Vapor hose damaged or disconnected |
| Engine hard to start | Malfunction of the Purge Control Solenoid Valve |
| Rough idle or engine stalls | Vapor hose damaged or disconnected |
| Malfunction of the PCV valve | |
| Rough idle | Malfunction of the Evaporative Emission Control System |
| Excessive oil consumption | Positive crankcase ventilation line clogged |
Schematic Diagrams
| Schematic Diagram |
Components and Components Location
| Components Location |
| 1. PCV valve 2. Canister 3. Purge control solenoid valve (PCSV) 4. Fuel tank pressure sensor (FTPS) | 5. Canister close valve (CCV) 6. Fuel level sensor (FLS) 7. Fuel tank air filter 8. Catalytic converter |
| 1. PCV Valve | 2. Canister |
|
|
| 3. Purge Control Solenoid Valve (PCSV) | 4. Fuel Tank Pressure Sensor (FTPS) |
|
|
| 5. Canister Close Valve (CCV) 7. Fuel Tank Air Filter | 6. Fuel Level Sensor (FLS) |
|
|
| 8. Catalytic Converter (WCC) | 8. Catalytic Converter (UCC) |
|
|
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Electric Thermostat (ECT) Troubleshooting
Troubleshooting
SymptomsPossible CausesRemedyCoolant leakage
•
From the thermostat gasket
Check the mounting nuts
•
Check the torque of the mounting nuts
•
Retighten the bolts and check leakage again.
Check the gasket for damage
•
Check gasket or seal for damage
...
Hyundai Elantra AD (2016-2020) Service Manual: Mode Control Actuator Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the mode control actuator connector.
3.
Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.
Verify that the mode control actuator operates to the vent mod ...
