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: LKAS Unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the LDWS unit cover (A).
3.
Disconnect the LKAS unit connector (A).
4.
Remove the LKAS unit after disengaging the mounting bracket (A).
Installation
1.
Align LDWS unit with windshield bracket using forward edge p ...
Hyundai Elantra AD (2016-2020) Service Manual: Auto Defogging Sensor Description and Operation
Description
The auto defogging sensor is installed on the front window
glass. The sensor judges and sends signal if moisture occurs to blow out
wind for defogging. The air conditioner control module receives signal
from the sensor and restrains moisture and eliminate defog by
controlling ...
