2009 CTS-V crank learn

[GLGJR]

Can EFI do a crank learn on the 09 CTS-V? I have read the pdf file and it says LS1 and LS6.

Thank you,
Gene

[joecar]

Hi Gene,

The pdf is old (it is being updated)...

If the ECM is an E38 or E67 then I believe CASE relearn should work (I have asked Tech Support to be sure).

Cheers
Joe

[GLGJR]

Joecar,

Thank you.

Gene

[Blacky]

Yes, the CASE learn works on the E38 and E67.

Regards
Paul

[GLGJR]

Blacky,

Thanks. I must be doing something wrong. I hve tried the CASE learn and it says OK but I do not think it is working correctly. I should have to go through the all of procedures or should I just have to use the CASE button?

Thanks,
Gene

[Blacky]

Then engine must be up to operating temperature and running at normal idle speed (around 500-800rpm).
The park brake must be applied.
There must be no trouble codes set.
The brake pedal must be depressed.*
The hood must be closed.*
Then click the CASE button - make sure no error message is displayed.
Then rev the engine to around 4500-5000rpm until you hear the engine stumble due to a momentary fuel cut. The cut is only for about 1/2 second.
Then let off the throttle immediately, wait for engine to return to idle, switch off ignition and wait about 30 seconds before turning ignition back on.


*Required on some models but a good idea anyway.

Regards
Paul

[GLGJR]

Paul,

Thank you.
Gene