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.
2007 Mazda 6 L4-2.3LFACTORY OEM SERVICE PROCEDURE
Crankshaft Position Sensor: Service and Repair
CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION[L3]
Removal
1. Perform the following procedure to making the working space.
1. Remove the Front wheel (RH).
2. Remove the splash shield.
2. Disconnect the CKP sensor connector.
3. Remove the installation bolts to remove the CKP sensor.
Installation
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.
1. Perform the following procedure so that piston No.1 is at the top dead center.
1. Remove the front drive shaft (RH).
2. Remove the cylinder block lower blind plug and install the SST.
3. Turn the crankshaft pulley to the clockwise until it stops.
2. Install the CKP sensor to the CKP sensor installer.
3. Fit the forked part of the CKP sensor installer with the fifth tooth (counting counter clockwise from the empty space A as shown in the figure) of the pulse wheel.
4. Install the CKP sensor fitting bolts.
Tightening torque: 5.5-7.5 N.m {56-76 kgf.cm, 4.1-5.5 ft.lbf}
5. Remove the CKP sensor installer
6. Remove the SST then install the cylinder block lower blind plug.
Tightening torque:20 N.m {2.0 kgf.m, 15 ft.lbf}
7. Install the front drive shaft (RH).
Removal
1. Perform the following procedure to making the working space.
1. Remove the Front wheel (RH).
2. Remove the splash shield.
2. Disconnect the CKP sensor connector.
3. Remove the installation bolts to remove the CKP sensor.
Installation
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.
1. Perform the following procedure so that piston No.1 is at the top dead center.
1. Remove the front drive shaft (RH).
2. Remove the cylinder block lower blind plug and install the SST.
3. Turn the crankshaft pulley to the clockwise until it stops.
2. Install the CKP sensor to the CKP sensor installer.
3. Fit the forked part of the CKP sensor installer with the fifth tooth (counting counter clockwise from the empty space A as shown in the figure) of the pulse wheel.
4. Install the CKP sensor fitting bolts.
Tightening torque: 5.5-7.5 N.m {56-76 kgf.cm, 4.1-5.5 ft.lbf}
5. Remove the CKP sensor installer
6. Remove the SST then install the cylinder block lower blind plug.
Tightening torque:20 N.m {2.0 kgf.m, 15 ft.lbf}
7. Install the front drive shaft (RH).
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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