Mazda 3 manuals

Mazda 3 Service Manual: Check Valve (One Way) Inspection [Mzr 2.3 Disi Turbo]

Mazda 3 Service Manual / Engine / Emissions / Check Valve (One Way) Inspection [Mzr 2.3 Disi Turbo]

1. Disconnect the vacuum hose connected between the check valve and the purge solenoid valve from the purge solenoid valve..

2. Disconnect the vacuum hose connected between the check valve (one-way) and the intake manifold from the intake manifold..

3. Blow through the check valve (one-way) and verify that air flows as specified.


Specification


Condition

Airflow

Air applied from port A to B

Yes

Air applied from port B to A

No*


* The check valve (one-way) is normal if the aeration to port A is 3.5 kPa/min {0.03 kgf/cm2 min, 0.5 psi/min} or less

when 130 kPa {1.32 kgf/cm2, 18.9 psi}

is applied to port B.

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