DOD KNOCK

Predator support for GM gas vehicles

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ralphhippie
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Joined: Mon Aug 03, 2020 5:44 pm
Location: Kentucky

DOD KNOCK

Post by ralphhippie »

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
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mikel
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Re: DOD KNOCK

Post by mikel »

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
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
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ralphhippie
Posts: 18
Joined: Mon Aug 03, 2020 5:44 pm
Location: Kentucky

Re: DOD KNOCK

Post by ralphhippie »

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
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mikel
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Re: DOD KNOCK

Post by mikel »

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 156 times
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

tech@diablosport.com
ralphhippie
Posts: 18
Joined: Mon Aug 03, 2020 5:44 pm
Location: Kentucky

Re: DOD KNOCK

Post by ralphhippie »

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
ralphhippie
Posts: 18
Joined: Mon Aug 03, 2020 5:44 pm
Location: Kentucky

Re: DOD KNOCK

Post by ralphhippie »

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
ralphhippie
Posts: 18
Joined: Mon Aug 03, 2020 5:44 pm
Location: Kentucky

Re: DOD KNOCK

Post by ralphhippie »

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
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mikel
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Re: DOD KNOCK

Post by mikel »

try this one then the 9r31
Attachments
u7194-9r19.crom
(1.24 MiB) Downloaded 160 times
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

tech@diablosport.com
ralphhippie
Posts: 18
Joined: Mon Aug 03, 2020 5:44 pm
Location: Kentucky

Re: DOD KNOCK

Post by ralphhippie »

Worked perfectly.
Ralph E. Hempen
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