How to remove and replace the Camshaft Position Sensor and its O-ring on 2010 Mazda 3?

Take away the battery cover and remove the negative terminal cable. Removed the upper engine cover, unconnected the electrical connector of CMP sensor and unscrewed the CMP sensor mounting bolt. Check the CMP sensor O-ring; change in case of damage. Apply clean engine oil over the O-ring, and place it back in the reverse order.

Genuine 2010 Mazda 3 Camshaft Position Sensor

Cam Position Sensor

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2 Camshaft Position Sensors found

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2010 Mazda 3 Camshaft Position Sensor Part Number: L3K9-18-230A
$82.31 MSRP: $109.77
You Save: $27.46 (26%)
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Product Specifications
- Other Name: Sensor, Camshaft Position; Camshaft Sensor
- Item Weight: 0.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: L3K9-18-230A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following 2010 Mazda 3 Submodels:
- Mazdaspeed, S | 4 Cyl 2.3 L GAS
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2010 Mazda 3 Camshaft Position Sensor Part Number: ZZCA-18-230B
$75.23 MSRP: $100.32
You Save: $25.09 (26%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Camshaft Position; Camshaft Position Sensor, Camshaft Sensor
- Condition: New
- Fitment Type: Direct Replacement
- SKU: ZZCA-18-230B
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following 2010 Mazda 3 Submodels:
- i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS

2010 Mazda 3 Camshaft Position Sensor Parts and Q&A

Q: How to remove and replace the Camshaft Position Sensor and its O-ring on 2010 Mazda 3?
A: Take away the battery cover and remove the negative terminal cable. Removed the upper engine cover, unconnected the electrical connector of CMP sensor and unscrewed the CMP sensor mounting bolt. Check the CMP sensor O-ring; change in case of damage. Apply clean engine oil over the O-ring, and place it back in the reverse order.