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.
2022 Mazda CX-5 SFACTORY OEM SERVICE PROCEDURE
Exhaust Shutter Valve Position Sensor Inspection: Notes
NOTE:
- The exhaust shutter valve position sensor is built into the exhaust shutter valve. When replacing the exhaust shutter valve position sensor, replace the TWC.
- The PCM increases the target engine speed for quick activation of the catalytic converter after a cold engine start. The PCM controls the exhaust shutter valve at the fully-closed position while the catalytic converter is activated quickly. Perform the exhaust shutter valve position sensor inspection with the engine cooled sufficiently (engine coolant temperature has decreased to equivalent of ambient temperature).
Factory Service Tools
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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.
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