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View Full Version : stock tune vs one from file depository?



myws6formula
January 15th, 2012, 06:06 AM
I sold one of my spare pcms for a 97 corvette and since I have TIS2000 I reprogrammed it with the stock calibration. I like to double check that everything is correct, no errors and such before I go and drop the PCM off to be shipped so I used a stock calibration off the holden crazy site to compare the two.

The throttle cracker looks to be a bit different when in compare mode. mine is much milder in this specific table, however looking at a few of the other tables on my calibration line pressure and such is only slightly increased over the Holden crazy tune, same goes with the shift speeds.

how can you tell which is the latest and greatest and should be used?

GMPX
January 15th, 2012, 11:08 AM
You can go to the CalID (http://tis2web.service.gm.com/tis2web) website, enter in the VIN. That will list what GM's latest tune is, that should be exactly with TIS would flash in.