Step 2

EVAP Canister Purge Valve and Its Circuit Check.






1) Disconnect vacuum hoses from vacuum pipes.
2) With ignition switch ON, blow into hose "A". Air should not come out of hose "B".

Using SUZUKI scan tool






3) Connect SUZUKI scan tool to DLC with ignition switch OFF
3a) Turn ON EVAP canister purge valve by using SUZUKI scan tool with ignition switch ON.
In this state, blow hose "A".
Air should come out of hose "B".

WARNING: Do not suck the air through valve. Fuel vapor inside valve is harmful.

If check results are as described above, EVAP canister purge valve and its circuit are in good condition, connect vacuum hoses securely.
If not, proceed to step 4).

Not using SUZUKI scan tool






3) Using service wire, connect E175-6 terminal of ECM coupler and body ground with ignition switch OFF.
3a) Turn ON ignition switch.
In this state, blow hose "A".
Air should come out of hose "B".

WARNING: Do not suck the air through valve. Fuel vapor inside valve is harmful.

If check results are as described above and E175-6 terminal to ECM connection is OK, EVAP canister purge valve and its circuit are in good condition, connect vacuum hoses securely. If not, proceed to step 4).
4) With ignition switch OFF, disconnect coupler from EVAP canister purge valve.






5) Check resistance between two terminals of EVAP canister purge valve.
Resistance of EVAP canister purge valve: 28-36ohms at 20°C (68°F)
If resistance is as specified, proceed to next operation check. If not, replace.






6) With coupler disconnected, blow into hose "A". Air should not come out of hose "B".
If not, replace EVAP canister purge valve.






7) Connect 12V-battery to solenoid purge valve terminals. In this state, blow hose "A".
Air should come out of hose "B".

WARNING: Do not suck the air through valve. Fuel vapor inside valve is harmful.

If check result is as specified above, check EVAP canister purge valve harness.
If not, replace EVAP canister purge valve.
8) Connect vacuum hoses.
9) Connect EVAP canister purge valve coupler securely.

Vacuum Passage Inspection






Start engine and run it at idle speed. With finger placed against vacuum hose disconnected, check that vacuum is applied.
It 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.