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New tune on 8.1 suburban

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Moderator: sohfast94

Post Wed Nov 07, 2018 6:48 pm

Posts: 4
I just got the tuner for my 2003 suburban 8.1l and installed the 91 tune.
Now my question is the Transmission shifts hard into 2nd and 3rd and in reverse the idle surges.
I was going to install the 87 tune and see how it does.
Is the hard shifting normal or should I return it to stock and try to install the tune again

Post Thu Nov 08, 2018 8:34 am

Posts: 53809
Location: DiabloSport World Headquarters

grab copies of the files from the tunes folder on the i drive and post them here and we'll fix it.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST

Post Thu Nov 08, 2018 4:09 pm

Posts: 4
:D
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Post Thu Nov 08, 2018 4:13 pm

Posts: 17303
Location: CT

also need to post the original backup stock tune file...
06MonteSS / DiabLew Tune
Image
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net

Post Thu Nov 08, 2018 4:28 pm

Posts: 4
:lamer:
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Post Sat Nov 10, 2018 2:06 pm

Posts: 4
How do I turn the Transmission to factory but leave the tune alone? Truck runs great but shifts very hard.

Post Sat Nov 10, 2018 8:23 pm

Posts: 17303
Location: CT

you can't... takes a custom tune to do it, like I replied to your email about...
06MonteSS / DiabLew Tune
Image
2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net

Post Mon Nov 12, 2018 9:37 am

Posts: 53809
Location: DiabloSport World Headquarters

please give this one a shot.
You do not have the required permissions to view the files attached to this post.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST


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