Help Calibration ??

[LBSBLOWN]

Yesterday while just driving down the Highway I hear ding, ding, ding and the message center starts displaying every message there is and of course the truck died, got it tow to the dealer and it needs a new ECM, apparently it had an internal CPU failure. anyway my question is they will be installing a new ECM with the latest calibration but since my Calibration is highly modified (this is my supercharged GMC in my sig) should I just do a Write cal only with my tune or should I read the new Calibration and make all my changes to it and then do a Write Calibration only or do I do a Write entire with my tune or the new Cal with all my changes.

Thanks for your help in advance

[Bill@HPTuners]

Read the new pcm, license the file, copy over the differences from your old file, write calibration only.

-Bill

[LBSBLOWN]

Read the new pcm, license the file, copy over the differences from your old file, write calibration only.

-Bill

Then after I do that, should I have the dealer do the CASE Learn?

I told them not to start or run it until I modified the Calibration with my tune because of the Larger injectors so No CASE Learn will have been done yet.

[Bill@HPTuners]

Sure, or you could likely use our scanner to do the same.

[murphinator]

case learn is in vcm controls of hpt fyi and it walks you through it step by step

takes under a minute and does not give you any type of confirmation that it has completed successfully