Hyundai Sonata LF: Emission Control System / Crankcase Emission Control System
Schematic Diagrams
Repair procedures
| 1. |
After disconnecting the vapor hose from the PCV valve, remove the PCV valve. |
| 2. |
Reconnect the PCV valve to the vapor hose. |
| 3. |
Inspect the PCV vlave operation.
| (1) |
Run the engine at idle. |
| (2) |
Put a finger on the open end of the PCV valve. |
| (3) |
Make sure that intake manifold vaccum can be felt. |
|
The plunger inside the PCV valve will move back and forth at vacuum. |
|
| 4. |
If the vacuum is not felt, clean or replace the vapor hose. |
Positive Crankcase Ventilation (PCV) Valve Description and Operation
Positive Crankcase Ventilation (PCV) Valve Repair procedures
| 1. |
Disconnect the PCV hose (A). |
| 2. |
Remove the PCV valve (B). 
|
| 1. |
Insert a thin stick (A) into the PCV valve (B) from the threaded side to check that the plunger moves. 
|
If the plunger does not move (PCV valve is clogged), clean or replace the valve.
|
|
| 1. |
Install in the reverse order of removal.
PCV Valve installation:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)
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Description and Operation
Description
Emissions Control System consists of three major systems.
•
Crankcase Emission Control System prevents blow-by gas from
releasing into the atmosphere...
Other information:
C..
Description
In order to make normal activation of airbag system, SRSCM
detects DTC(s) for the Occupant Classification System (OCS). If the seat
is occupied, OCS detects passenger presences status and send signal to
SRSCM via CAN.
SRSCM recognizes the signal as 2(two) different
classifications; that is, 1(Empty or small occupant with child restraint
system), 2(Occupied with large occupant and small occupant)...
General Information
