Check Evap Hose Purge Vsv Intake Manifold

Toyota Rav4 Evap Vsv

(a) Disconnect the hose (connected to the intake manifold) from the purge VSV.

(b) Start the engine.

(c) Use your finger to confirm that the hose has suction.

Result

Test Results

Suspected Trouble Areas

Proceed To

Suction applied

EVAP hose between purge VSV and intake manifold normal

A

No suction

• Intake manifold port

• EVAP hose between purge VSV and intake manifold

B

(d) Reconnect the hose.

Go to step 25

INSPECT DUTY VACUUM SWITCHING VALVE (PURGE VSV)

Rav4 Vsv Valve Hose Connection

Result

(a) Remove the purge VSV.

(b) Apply the battery voltage to the terminals of the purge VSV.

(c) Using an air gun, confirm that air flows from port A to port B.

Result

Test Results

Suspected Trouble Areas

Proceed To

Air flows

Purge VSV normal

A

No air flow

Purge VSV

B

(d) Install the purge VSV.

Go to step 30

CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV)

Wire Harness Side:

Purge VSV Connector dD ,—v

Cs

Front View

(a) Disconnect the B2 purge VSV connector.

(b) Turn the ignition switch ON.

(c) Measure the voltage between terminal 2 of the purge VSV connector and the body ground.

Result

Test Results

Suspected Trouble Areas

Proceed To

9 to 14 V

Normal

A

Other than result above

Wire harness or connectors between purge VSV and ECM

B

(d) Reconnect the purge VSV connector.

Go to step 31

CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM)

(a) Disconnect the B30 ECM connector and the B2 purge VSV connector.

(b) Measure the resistance. Standard resistance

Tester Connections

B2-2 (Purge VSV) - Body ground

Specified Conditions

Below 1 Q

10 kQ or higher

10 kQ or higher

(c) Reconnect the purge VSV connector.

(d) Reconnect the ECM connector.

Go to step 34

Go to step 31

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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Responses

  • toby
    Where is the evap valve on a toyota yaris?
    6 years ago

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