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View Full Version : LLY Suncoast 5 to 6 speed conversion cals



DieselAdam
September 30th, 2009, 03:39 AM
Hi I was wondering if anyone knows if the EFI system will pick up to enable the 6th gear variables like apply, release, 5-6shift line, and the 6-5 shift line when the 6 speed Suncoast system is used? I would like to be able to use the tool to control early lockup when in tow/haul. Basically, I want to use tow/haul for my fuel economy shift schedule.

Thanks.

GMPX
September 30th, 2009, 09:20 AM
Those TCM's are locked and cannot be tuned.

DieselAdam
September 30th, 2009, 11:47 AM
Thanks. That really stinks, I will have to come up with a different game plan I guess.