Suzuki Wagon R Manual page 3222

ENGINE AND EMISSION CONTROL SYSTEM (M13 ENGINE) 6E2-45
EVAP Canister
WARNING:
DO NOT SUCK nozzles on EVAP canister. Fuel vapor
inside EVAP canister is harmful.
1) Check outside of EVAP canister visually.
2) Disconnect vacuum hoses from EVAP canister.
3) Check that there should be no restriction of flow through
purge pipe (1) and air pipe (2) when air is blown (4) into tank
pipe (3).
If any faulty condition is found in above inspection, replace.
PCV system 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.
PCV Hose
Check hoses for connection, leakage, clog and deterioration.
Replace as necessary.
PCV Valve
1) Detach air cleaner assembly.
2) Disconnect PCV valve from cylinder head cover and install
plug to head cover hole.
3) Install air cleaner assembly temporarily.
4) Run engine at idle.
5) Place your finger over end of PCV valve (1) to check for vac-
uum.
If there is no vacuum, check for clogged valve. Replace as
necessary.