CASE relearn...when?
07-23-2006, 08:23 PM
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CASE relearn...when? When would you want to do a case relearn? Is it absolutely necessary on a new motor install? Im just trying to get an idea of when everyone does it and what you look for before you do it.
07-23-2006, 08:35 PM
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any time the relationship to the crank, crank angle sensor, and/or the PCM changes. i.e., new crank, new pcm. Not a bad idea after a cam swap, or a full flash either.
07-23-2006, 09:02 PM
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yes. when a new motor is introduced, regardles if the crank was reused, the relationship between the crank reluctor and crank angle sensor has changed. if a new crank is used, you have a new reluctor, change in crank angle sesor relation, and the relation of both to the PCM has changed.
The crank reluctor is a map of the crank position. every reluctor is subject to machining tolorances. Anything that disturbs reading the map, or when a new map is used, CASE relearn should be performed.
The crank reluctor is a map of the crank position. every reluctor is subject to machining tolorances. Anything that disturbs reading the map, or when a new map is used, CASE relearn should be performed.
