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 canister purge valve.
Check resistance between two terminals of EVAP canister purge valve (1).
If resistance is as specified, proceed to next operation check. If not, replace EVAP canister purge valve.

Resistance of EVAP canister purge valve

28 - 35 ohm at 20 °C (68 °F)

Fig 1: Checking Resistance Between Two Terminals Of EVAP Canister Purge Valve
Courtesy of SUZUKI OF AMERICA CORP.
Disconnect vacuum hoses from intake manifold and purge pipe.
With coupler disconnected, apply vacuum (-53 kPa (-7.69 psi) to -67 kPa (-9.72 psi)) to hose (1) using a special tool. Check that vacuum is maintained.
In this state, connect 12 V-battery to EVAP canister purge valve terminals.
Check that air goes into hose (2).

If check result is not as described, replace EVAP canister purge valve.

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

Special tool

(A): 09917-47011

Fig 2: Checking Air Goes Into Hose
Courtesy of SUZUKI OF AMERICA CORP.

Fig 3: Connecting 12 V-Battery To EVAP Canister Purge Valve Terminals
Courtesy of SUZUKI OF AMERICA CORP.
Connect vacuum hoses.
Connect EVAP canister purge valve coupler securely.