C6 Corvette Won't Start after Restore

aggie88 · Post by **aggie88** » Sat Jun 06, 2009 4:12 pm

I was upgrading to the new CROM v.9r02 and restored the factory tune in my 2005 Corvette - and now I cannot start the car.

Predator U7191

I am quite sure I reloaded the factory tune as the Predator said the restore was complete.

I tried to load the updated Diablotune and get "Unable to read p/n of first calibration file"

I also cannot read the VIN.

Am I toast?

neonhomer · Post by **neonhomer** » Sat Jun 06, 2009 5:36 pm

Try disconnecting the battery for a few minutes.. usually about 15 will work, and reconnect the battery and see if that will work.

If not, your PCM might need to be reflashed.

aggie88 · Post by **aggie88** » Sat Jun 06, 2009 8:46 pm

Thanks got my car started. WHeewww - a close call!

But the Predator still cannot read the calibration file or my VIN.

neonhomer · Post by **neonhomer** » Sun Jun 07, 2009 7:51 am

Did you uninstall the tune before upgrading the tool, or did you upgrade and then uninstall the tune?

aggie88 · Post by **aggie88** » Sun Jun 07, 2009 8:30 am

Quite sure I uninstalled the diablotune first. The tuner shows last tune written as Original Backup.

I also notice this is the message that displays when I turn on the tuner without hooking up to the obdII port

neonhomer · Post by **neonhomer** » Sun Jun 07, 2009 10:25 am

The tuner should have said No Tune Installed/Tool Unlocked before updating the tool.

aggie88 · Post by **aggie88** » Sun Jun 07, 2009 11:15 am

neonhomer wrote:The tuner should have said No Tune Installed/Tool Unlocked before updating the tool.

Where would such a message display? The message "Original Backup" I am getting is displayed under "Show Last Tune Written" under the "Options" menu.

Was I somehow supposed to clear that to arrive at the "No Tune Installed/Tool Unlocked" message?

I thought that if the display showed "Original Backup" as the Last Tune Written - then it is unlocked.

Could "No Tune Installed" message apply to a version earlier than mine, Born 6/27/2008 3981?

neonhomer · Post by **neonhomer** » Sun Jun 07, 2009 12:19 pm

I can't remember where it says it exactly. I thought it was supposed to say that under the last tune written area.

Did you uninstall the tuner, or just install the original tune back to the vehicle?

aggie88 · Post by **aggie88** » Sun Jun 07, 2009 8:36 pm

neonhomer wrote:I can't remember where it says it exactly. I thought it was supposed to say that under the last tune written area.

Did you uninstall the tuner, or just install the original tune back to the vehicle?

I did not know you can "uninstall". I thought putting the original tune back in was the uninstall. I don't think there is an option to uninstall only or to do that prior to restoring factory backup. Please correct me if I am wrong.

Post by **06MonteSS** » Mon Jun 08, 2009 11:15 am

no Neon.. our 7191's will show "original backup" under the last tune written screen when it's unlocked/restored...

to restore the original backup, you went to OPTIONS > TROUBLESHOOTING > RESTORE ORIGINAL BACKUP correct??

also, that error message for "Unable to read p/n of first calibration file" is normally because you don't have your key turned on to the correct position... key has to be turned on for it to be able to access/read/flash the ecm...

aggie88 · Post by **aggie88** » Mon Jun 08, 2009 12:14 pm

06MonteSS wrote:no Neon.. our 7191's will show "original backup" under the last tune written screen when it's unlocked/restored...

to restore the original backup, you went to OPTIONS > TROUBLESHOOTING > RESTORE ORIGINAL BACKUP correct??

also, that error message for "Unable to read p/n of first calibration file" is normally because you don't have your key turned on to the correct position... key has to be turned on for it to be able to access/read/flash the ecm...

Yes, I restored that way. It was the 2nd time I did it. The first time, I restored it to adjust the fan settings on the Diablotune. Then uploaded the new tune into the car - no problems. This time I took it out to update the Version - I was trying the log real time data and could not upload to the Dataveiwer - so I updated from the version that was on the tuner to the 9r02 version on the web. Now I cannot load it back in - p/n calibration error. I tried to veiw the p/n calibration and couldn't see that either. The Keyless Go on the corvette is trikcy. The Predator instructions say to put in Accessory with "Accessory Mode On" showing on the DIC. I tried that and tried with the RUN posistion. Same problem.

I called DS tech support and they say I need to have the tuner plugged in and to walk through it. I won't be able to until Thursday.

C6 Corvette Won't Start after Restore

C6 Corvette Won't Start after Restore

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