I have good battery 12.63 volts. Performed a read tune only and now Truck won't start.
It cranks, but will not fire up. Checked the rail and no fuel pressure.
The symptoms are that of a bricked PCM, how ever I only downloaded the tune.
The owner just bought it and does not know what was used to tune it. Would that matter in this scenario?
Last edited by maxgee; 05-15-2016 at 07:39 PM.
2002 6.6 TR6060 ZO6 (520Whp)
2014 Audi S7 (730whp)
I swapped in a battery that read 12.83 volts and same deal. Both batteries fire up my Corvette just fine. No fuel getting to the rail. Could the PCM be fried by reading a tune only? 2007 Trailblazer SS. Hoping to hear from someone. Thanks
2002 6.6 TR6060 ZO6 (520Whp)
2014 Audi S7 (730whp)
I would check all IGN related fuses, something may have popped.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Reading the tune should have no effect on it. I have been disconnected while downloading a cal and it still works. Now uploading it can be an issue if it is interrupted.
Too many unfinished projects
Thanks, it was a fuse. whew!!
2002 6.6 TR6060 ZO6 (520Whp)
2014 Audi S7 (730whp)
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