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View Full Version : calibration missing HELP!



1chevy02
October 24th, 2009, 02:38 PM
trying to reflash and i get a calibration missing help need this truck running

GMPX
October 25th, 2009, 09:45 AM
So did it fail on a write attempt before this message?
If so, just click ok and EFILive will continue on and attempt to reflash the ECM.

Cheers,
Ross

1chevy02
October 25th, 2009, 02:39 PM
it just failed after many times we finally took off the battery cables and then it worked

1chevy02
October 28th, 2009, 11:52 AM
any reason for this

GMPX
October 28th, 2009, 12:17 PM
Not really. It sounds like the ECM had got itself in a knot for some reason, hence once you disconnected the battery it reset the ECM to a normal state.

Cheers,
Ross

1chevy02
October 29th, 2009, 05:12 AM
so taking off the battery cables was the right thing to do? I was getting a little nervous as it was not my truck and people tend to thing efi is black magic:grin:

GMPX
October 29th, 2009, 09:10 AM
The Bosch ECM is pretty safe on a write, even a full OS write. It has some nice safety nets built in. You wouldn't pull the battery cable on an LB7!