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DOD KNOCK

Predator support for GM gas vehicles

Moderators: mikel, 06MonteSS

Post Sun Aug 23, 2020 10:24 pm

Posts: 7
Location: Kentucky
I have a 7194 with a 9r17. I have 2007 new body style GMC Sierra 5.3 I put the 87 tune in and have been adjusting my spark advance for the spark knock. The other day I turned the DOD off and it sounded like I had a collapsed lifter (loud) or something. I turned it back on and it went away. I think the previous owner may have had someone do an HP tune just to turn the AFM/DOD off. Would this cause the sound when I turned it off with my tuner?
Ralph E. Hempen

Post Mon Aug 24, 2020 8:27 am

Posts: 56459
Location: DiabloSport World Headquarters

No, that wouldn't affect it.
I've never heard of what you describe, so its tough to say here. Disabling AFM should in theory reduce the possibility of odd noises...
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 Mon Aug 24, 2020 11:23 am

Posts: 7
Location: Kentucky
I turned it off again this morning and same thing. Real loud like it dropped a lifter. Turned it back on and it stopped.
Ralph E. Hempen

Post Mon Aug 24, 2020 12:10 pm

Posts: 56459
Location: DiabloSport World Headquarters

cant say i have ever heard of this.
Id maybe try updating the device to the latest version.
Attachments
u7194-9r31.crom
(1.82 MiB) Downloaded 11 times
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 Mon Aug 24, 2020 12:46 pm

Posts: 7
Location: Kentucky
mikel wrote:
cant say i have ever heard of this.
Id maybe try updating the device to the latest version.

I will try it when I get home today. I tried to update it when I first got it. Don't remember why but it would not let me. Do I need to reinstall the factory tune before I update?
Ralph E. Hempen

Post Fri Aug 28, 2020 5:20 pm

Posts: 7
Location: Kentucky
mikel wrote:
cant say i have ever heard of this.
Id maybe try updating the device to the latest version.

Ok when i went to download the file you gave me to my tuner it says, "Can't downgrade u7194 from 9r16 to 9r31"
Ralph E. Hempen

Post Fri Aug 28, 2020 5:25 pm

Posts: 7
Location: Kentucky
ralphhippie wrote:
mikel wrote:
cant say i have ever heard of this.
Id maybe try updating the device to the latest version.

Ok when i went to download the file you gave me to my tuner it says, "Can't downgrade u7194 from 9r16 to 9r31"

And what is odd my tuner says v.9r17 not the 16
Ralph E. Hempen

Post Mon Aug 31, 2020 11:45 am

Posts: 56459
Location: DiabloSport World Headquarters

try this one then the 9r31
Attachments
u7194-9r19.crom
(1.24 MiB) Downloaded 14 times
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 Mon Aug 31, 2020 5:09 pm

Posts: 7
Location: Kentucky
Worked perfectly.
Ralph E. Hempen


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