Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA2013MX-5 MIATA GRAND TOURING, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMSYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM LF 2.0L]ENGINE CONTROL SYSTEM OPERATION INSPECTION [LF]VARIABLE TUMBLE CONTROL OPERATION INSPECTION
2013 Mazda MX-5 Miata Grand Touring, Automatic Trans
Variable Tumble Control Operation Inspection
2013 Mazda MX-5 Miata Grand Touring, Automatic TransSECTION Variable Tumble Control Operation Inspection
- Connect the M-MDS to the DLC-2.
- Access the ECT PID.
- Verify that the ECT PID is below 60°C {140°F}.
- Start the engine.
- Inspect rod operation under the following conditions:ROD OPERATION
Accelerator pedal position Release Depress Shutter valve actuator Operate Not operate - If the rod operation is not specified, inspect as follows:
- Verify that DTC No. P2004, P2006, P2009 or P2010 is not displayed.
- If DTC No. P2004, P2006, P2009 or P2010 are shown, perform DTC inspection. (See DTC P2004 [LF] ). (See DTC P2006 [LF] ). (See DTC P2009 [LF] ). (See DTC P2010 [LF] ).
- Inspect the variable tumble solenoid valve. (See
VARIABLE TUMBLE SOLENOID VALVE INSPECTION [LF]
).
- If the variable tumble solenoid valve is not normal, replace the variable tumble solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF] ).
- If the variable tumble solenoid valve is normal, inspect the following:
- Vacuum hose and vacuum chamber for looseness or damage
- Shutter valve actuator (See VARIABLE TUMBLE SOLENOID VALVE INSPECTION [LF] ).
- Shutter valve stuck open or closed
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.