Inspect No Air Switching Valve

a. Blow air into port B and check that air is not discharged from port C.

2006 ENGINE Emission Control - Sequoia

Fig. 32: Blowing Air Into Port B, Checking That Air Is Not Discharged From Port C Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Apply vacuum (30 kPa (306 gf/cm2 , 4.35 psi) to port A, blow air into port B and check that air is discharged from port C.

If operation is not as specified, replace the No.2 air switching valve.

2006 ENGINE Emission Control - Sequoia

Fig. 33: Applying Vacuum To Port A, Blowing Air Into Port B & Checking That Air Is Discharged From Port C

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. REASSEMBLY

Fig. 33: Applying Vacuum To Port A, Blowing Air Into Port B & Checking That Air Is Discharged From Port C

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. REASSEMBLY

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