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 MANUALSMAZDA20133 MAZDASPEED, 2.3L ENG VIN 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 24 (ENGINE CONTROL SYSTEM [MZR 2.0, MZR 2.5])CRANKSHAFT POSITION (CKP) SENSOR INSPECTIONVISUAL INSPECTION
2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3
Visual Inspection
2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3SECTION Visual Inspection
WARNING: This page is about a different variant/trim than selected.
CAUTION:
- When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing.
- Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.
- Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .)
- Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .)
- Perform the following procedure for easier access.
- Remove the aerodynamic under cover No.2. (See AERODYNAMIC UNDER COVER NO.2 REMOVAL/INSTALLATION .)
- Remove the front splash shield (RH). (See SPLASH SHIELD REMOVAL/INSTALLATION .)
- Disconnect the CKP sensor connector.
- Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION .)
- Verify that there are no metal shavings on the sensor.
- If there is a malfunction, remove any metal shavings that are adhering.
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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.