Mazda MX-6 1998, Workshop Manual

Page: 462 / 1282

INTAKE-AIR SYSTEM [KL]
VARIABLE RESONANCE INDUCTION SYSTEM (VRIS) SHUTTER VALVE ACTUATOR No.1 INSPECTION [KL]
W 6 U 1 1 3 W 5 4
1. Disconnect the vacuum hose from the VRIS
shutter valve actuator No.1.
2. Connect a vacuum pump to the VRIS shutter
valve actuator No.1.
3. Apply vacuum slowly and check the rod
movement of the VRIS shutter valve actuator as
shown.
Vacuum kPa {mmHg, inHg}
Rod movement
Below 1.4{10, 0.39} Not pulled
1.4—3 .9 (1 0 — 30, 0.4— 1.1} Start to move
Above 2 3(170, 6.7}
Fully pulled
4. If not as specified, replace the air intake pipe
component.
Note
• The VRIS shutter valve actuator No.1 is
assembled to the air intake pipe component.
VARIABLE RESONANCE INDUCTION SYSTEM (VRIS) SHUTTER VALVE ACTUATOR No.2 INSPECTION [KL]
W 6 U 1 1 3 W 5 5
1. Disconnect the vacuum hose from the VRIS
shutter valve actuator No.2.
2. Connect the vacuum pump to the VRIS shutter
valve actuator No.2.
Vacuum kPa {mmHg, inHg} Rod movement
Below 1.4 {10, 0.39} Not pulled
1.4— 3.9 (1 0 — 30, 0.4— 1.1}
Start to move
Above 23 {170, 6.7} Fully pulled
4. If not as specified, replace the VRIS shutter valve
body component.
Note
• The VRIS shutter valve actuator No.2 is
assembled to the VRIS shutter valve body
component.
3. Apply vacuum slowly and check the rod
movement of the VRIS shutter valve actuator as
shown.
VARIABLE RESONANCE INDUCTION SYSTEM (VRIS) CHECK VALVE (ONE-WAY) INSPECTION [KL]
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1. Remove the check valve. 4. If not as specified, replace the VRIS check valve
2. Blow through A and verify that air flows from B. (one-way).
3. Blow through B and verify that air does not flow
from A.
W6U113WB8
0 1 -1 3 B -4