C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

speed sensor

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Old Oct 31, 2009 | 10:24 AM
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Default speed sensor

Any one have an idea how to change the speed sensor in an 84?
Does it have to be calibrated afterwards?
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Old Oct 31, 2009 | 10:29 AM
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Unplug wire, remove 10mm bolt and sleeve, gently wiggle out the old sensor, swap the drive gear, and reverse to install.
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Old Oct 31, 2009 | 10:40 AM
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Originally Posted by Pete K
Unplug wire, remove 10mm bolt and sleeve, gently wiggle out the old sensor, swap the drive gear, and reverse to install.
It is plug and play.
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Old Oct 31, 2009 | 02:36 PM
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But I thought it was an electronic part, so I don't understand about swapping the gears.

Do I get a gear also with the sensor?

Where is the best place to get a sensor?
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Old Oct 31, 2009 | 06:49 PM
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Originally Posted by rsovine
But I thought it was an electronic part, so I don't understand about swapping the gears.
Do I get a gear also with the sensor?
Where is the best place to get a sensor?
Why do you need to swap out?
The gear drives the sensor.The sensor (if you can find one) does not come with a gear; you reuse your original one
You change to a different drive gear if you change your rearend ratio to make the speedo read correctly
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Old Nov 1, 2009 | 01:56 AM
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The speedo gear spins the sensor which creates electromagnetic impulses which are read by the ecu.
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