Turn off suspension in the trunk.
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Jack up the front of the car and put it on jack stands (if you do not have a lift that is).
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Now remove the serpentine belt by using the 1/2" breaker bar.
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Slide under the car and find the A/C compressor which is on the passenger side of the engine.
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Locate the (3) 10MM bolts that secure the compressor to the block....there are 2 on the bottom and 1 on the top of the compressor.
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Loosen COMPLETELY, but do not remove the (3) 10MM bolts that secure the A/C compressor to the block.
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Slide the A/C compressor out of the way (you will need to slide it as far away as possible.....but be VERY careful not to break the A/C lines that are attached to the compressor!).
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Remove the 8MM bolt that secures the crankshaft position sensor to the block.
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Remove the sensor from engine.
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Check the area around the cam sensor, and clean area as necessary to not allow any dirt/debris into the engine.
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Use some of the left over oil from removed sensor to lubricate the o-ring on new sensor.
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Slide new sensor into engine.
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Secure it to the engine with the 8MM bolt removed from the old one.
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Reposition A/C compressor to the block so that the bolts are aligned.
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While holding the A/C compressor in place, with your hand, start the (3) 10MM bolts that were loosened earlier.
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Now tighten the (3) 10MM bolts to the engine securely.
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Remove car from jack stands (or lift if so equipped).
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Lower car back to ground with jack.
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Place the serpentine belt back on.
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Turn on suspension in trunk.