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EVAP Canister Purge Valve Inspection

WARNING: Do not apply vacuum by mouth; otherwise harmful fuel vapor can be breathed in.

CAUTION: Do not apply vacuum more than 86 kPa (12.47 Psi); otherwise EVAP canister purge valve could be damaged.

With ignition switch OFF, disconnect coupler from EVAP canister purge valve.
Check for resistance between two terminals of EVAP canister purge valve.
If resistance is as specified, proceed to next operation check. If not, replace EVAP canister purge valve.

EVAP canister purge valve resistance

28-36 ohm at 20°C (68°F)

Fig 1: Checking Resistance Between Terminals Of EVAP Canister Purge Valve
Courtesy of SUZUKI OF AMERICA CORP.
With coupler disconnected, apply vacuum (53 kPa (7.69 Psi) to 67 kPa (9.72 Psi)) to the outlet nozzle (1) using a special tool. If vacuum can be applied, go to the next step. If not, replace EVAP canister purge valve.
Special tool

(A): 09917-47910

Fig 2: Applying Vacuum To Outlet Nozzle Using Special Tool
Courtesy of SUZUKI OF AMERICA CORP.
Connect 12 V-battery to solenoid purge valve terminals. In this state, apply vacuum (53 kPa (7.69 Psi) to 67 kPa (9.72 Psi)) to the outlet nozzle (1) using a special tool.
If vacuum can not be applied, EVAP canister purge valve is in good condition. Check EVAP canister purge valve harness.

If vacuum can not be applied, replace EVAP canister purge valve.

Special tool

(A): 09917-47910

Fig 3: Applying Vacuum To Outlet Nozzle Using Special Tool
Courtesy of SUZUKI OF AMERICA CORP.
Connect vacuum hoses.
Connect EVAP canister purge valve coupler securely.