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The sensor works by generating pulses that are sent to the PCM. The PCM will use this information to notify where the crankshaft is to determine the injector sequence and ignition timing. When you installed the new CKP, did you happen to notice if a peice of paper was on the end that went into the bell housing? The paper is cut off by the crankshaft to give the proper distance and will not work correctly without it. If you didn't have a peice of paper on it you can either go to the dealer and get the paper or you can use a cereal box and cut the small peice and glue it on.

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Q: How does the crank sensor work what does it read i put new sensor on and still wont start?
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