Mazda MX-5 Miata / Grand Touring. Manual - part 139

Fig. 20: View Of Variable Tumble Solenoid Valve & Actuator 
Courtesy of MAZDA MOTORS CORP. 

VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR ROD OPERATION REFERENCE 

VARIABLE TUMBLE SHUTTER VALVE ACTUATOR 
REMOVAL/INSTALLATION [LF] 

Vacuum kPa {mmHg, inHg}

Rod movement

Below -2.7 {-21, -0.9}

Not operate

Above -33.4 {-251, -9.89}

Fully pulled

WARNING:



A hot engine and intake-air system can cause severe burns. Turn off 
the engine and wait until they are cool before removing the intake-air 
system.  



Fuel line spills and leakage from the pressurized fuel system are 

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ENGINE PERFORMANCE Intake Air System - MX-5 Miata

  

1. Remove the battery cover.  

2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)  

3. Remove the throttle body. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF] .)  

4. Disconnect the quick release connector (Type A) (See QUICK RELEASE CONNECTOR 

(EMISSION SYSTEM) REMOVAL/INSTALLATION [LF] .)  

5. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [LF] .)  

6. Remove the service hole cover. 

1. Remove the front suspension tower bar (joint), (right side) and (left side). (See FRONT 

SUSPENSION TOWER BAR REMOVAL/INSTALLATION .)  

2. Remove the wiper arm. (See WIPER ARM AND BLADE REMOVAL/INSTALLATION .)  

3. Remove the cowl grille. (See COWL GRILLE REMOVAL/INSTALLATION .)  

4. Remove the side cowl grille. (See SIDE COWL GRILLE REMOVAL/INSTALLATION .)  

5. Remove the service hole cover. (See EGR VALVE REMOVAL/INSTALLATION [LF] .)  

7. Remove the harness bracket. 

Fig. 21: Identifying Harness Bracket 
Courtesy of MAZDA MOTORS CORP.

dangerous. Fuel can ignite and cause serious injury or death and 
damage. Fuel can also irritate skin and eyes. To prevent this, always 
complete the "Fuel Line Safety Procedure", while referring to the 
"BEFORE SERVICE PRECAUTION [LF] ".  

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ENGINE PERFORMANCE Intake Air System - MX-5 Miata

  

8. Follow "BEFORE SERVICE PRECAUTION" before performing any work operations to prevent fuel 

from spilling from the fuel system. (See BEFORE SERVICE PRECAUTION [LF] .)  

9. Remove the under cover. (See TRANSVERSE MEMBER REMOVAL/INSTALLATION .)  

10. Disconnect the quick release connector from the fuel distributor. (See QUICK RELEASE 

CONNECTOR (FUEL SYSTEM) REMOVAL/INSTALLATION [LF] .)  

11. Remove the fuel distributor. (See FUEL INJECTOR REMOVAL/INSTALLATION [LF] .)  

12. Move the clutch release cylinder slightly out of the way. (MT) (See CLUTCH RELEASE CYLINDER 

REMOVAL/INSTALLATION .) 

Fig. 22: View Of Harness Bracket 
Courtesy of MAZDA MOTORS CORP. 

13. Remove the dynamic chamber. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF] .)  

14. Remove in the order indicated in the table. . 

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ENGINE PERFORMANCE Intake Air System - MX-5 Miata

  

Fig. 23: Identifying Removal Order Of Variable Intake Air Shutter Valve Actuator (With Torque 
Specifications) 
Courtesy of MAZDA MOTORS CORP. 

Removal Order Of Variable Intake Air Shutter Valve Actuator (With Torque Specifications) 

15. Install in the reverse order of removal.  

VARIABLE TUMBLE SHUTTER VALVE ACTUATOR REMOVAL NOTE 

1. Disengage the variable tumble shutter valve actuator rod from the dynamic chamber on the opposite side 

using a suitable screwdriver or equivalent tool as shown in the figure. .  

1

Vacuum Hose

2

Variable Tumble Shutter Valve Actuator

CAUTION:



Do not remove the lever, otherwise the variable tumble shutter valve 
opening angle will deviate. To prevent removal of the lever when 
removing the variable intake shutter valve actuator, press the lever 
firmly to the dynamic chamber side by hand.  

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ENGINE PERFORMANCE Intake Air System - MX-5 Miata