Suzuki Liana RH413 Service Manual page 196

1B-4 Aux. Emission Control Devices:
Vacuum Passage Inspection
Start engine and run it at idle speed. Disconnect vacuum
hose (1) from EVAP canister purge valve (2). With finger
placed against hose disconnected, check that vacuum is
applied.
If it is not applied, clean vacuum passage by blowing
compressed air.
Vacuum Hose Inspection
Check hoses for connection, leakage, clog and
deterioration.
Replace as necessary.
EGR Valve Removal and Installation
Removal
1) Disconnect negative cable at battery.
2) Remove engine cover.
3) Remove EGR pipe.
4) Disconnect EGR valve connector.
5) Remove EGR valve and gasket from cylinder head.
Installation
Reverse removal procedure noting the following.
• Clean mating surface of valve and cylinder head.
• Use new gaskets.
EGR Valve Inspection
S3RH0A1206011
1) Check resistance between the following terminals of
EGR valve (1) in each pair.
If found faulty, replace EGR valve assembly.
EGR valve resistance (A – B, C – B, F – E, D – E
terminal)
20 – 24 Ω
2) Remove carbon from EGR valve gas passage.
I2RH0B120003-01
CAUTION
!
S3RH0A1206012 Do not use any sharp-edged tool to remove
carbon.
Be careful not to damage or bend EGR valve
(1), valve seat (3) and rod.
3) Inspect valve (2), valve seat and rod for fault, cracks,
bend or other damage.
If found faulty, replace EGR valve assembly.
I2RH0B120004-01
S3RH0A1206013
PCV Hose Inspection
NOTE
Be sure to check that there is no obstruction
in PCV valve or its hoses before checking
IAC duty, for obstructed PCV valve or hose
hampers its accurate adjustment.
Check hoses for connection, leakage, clog and
deterioration.
Replace as necessary.
S3RH0A1206014
I2RH0B120005-01
I2RH0B120006-01
S3RH0A1206018