What is the purpose of Case Learn and Cylinder Balance

[LittleSlow1]

What doe Case Learn do? I have done searches on the board and no thread state what it does or what it is for. I tried it, it worked for me, seems like people are having trouble with it but what is it for ??

Also Cylinder balance what is that for ? Is it just a diagonostics check to make sure all cylinders are working or to test for a bad cylinder. MY results ranged from 96% to 101 %.

[huttler]

i would like an answer to this too

[EC_Tune]

Case Learn is only utilized when replacing an engine or a PCM with a new one. Possibly if you have done a cam change. What it does is syncronize the cam signal to the crank signal.

Cylinder balance is usually used to determine if you have an injector/cylinder that is out of whack. If you really had a bad cylinder, the good ones would show more RPM drop as you have more than one down when the cylinder balance test runs.

HTH

[PurplePiss]

EC,

Would it be wise to do this on a stock car? Is it possible there could be a performance gain if it wasn't right from the factory?

[EC_Tune]

Once the CASE learn is done it is not necessary (or advisable) to do it again. It's basically a setup utility.

[huttler]

Thx for the responses

[FawkinFlyin']

Possibly if you have done a cam change.

So, is this something you would do to start tuning a cam swap ?

[horist]

generally no, won't hurt anything, but generally only needed if swapping PCMS or overwriting entire PCM... you'll notice very rough idle and difficulty starting if it's needed

[FawkinFlyin']

gotcha