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 MANUALSMAZDA2005MX-5 MIATA L4-1.8L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCRANKSHAFT POSITION SENSORADJUSTMENTS
2005 Mazda MX-5 Miata L4-1.8L DOHC
Crankshaft Position Sensor: Adjustments
2005 Mazda MX-5 Miata L4-1.8L DOHCSECTION Adjustments
CRANKSHAFT POSITION (CKP) SENSOR ADJUSTMENT
1. Loosen the CKP sensor installation bolt.
2. While moving the CKP sensor, adjust the air gap between the CKP sensor and the four projections on the plate using a feeler gauge.
Specification
0.5 - 1.5 mm {0.020 - 0.059 in}
3. Tighten the CKP sensor installation bolt.
- If not adjusted, replace the plate behind the crankshaft pulley or the CKP sensor. (See PLATE REMOVAL/INSTALLATION [BP, BP WITH TC].) (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [BP, BP WITH TC].)
Tightening torque
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}
1. Loosen the CKP sensor installation bolt.
2. While moving the CKP sensor, adjust the air gap between the CKP sensor and the four projections on the plate using a feeler gauge.
Specification
0.5 - 1.5 mm {0.020 - 0.059 in}
3. Tighten the CKP sensor installation bolt.
- If not adjusted, replace the plate behind the crankshaft pulley or the CKP sensor. (See PLATE REMOVAL/INSTALLATION [BP, BP WITH TC].) (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [BP, BP WITH TC].)
Tightening torque
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}
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.