Diablosport Forums

i have a predator u7194 not sure which revision i'll have to check, I know that I have to update to the 09 update yet. i have a 09 gmc sierra 5.3L with dynomax cat back duals and an air raid CAI and a poweraid throttle body spacer. I run 87 octane as 91 plus can be hard to find. what tune do I run I tried 87 Octane tune and gained 3 - 4 MPG and some noticeable power. Tried Diablo tune and mileage was close to the same but way more bottom end. my truck is flex fuel and 6 speed transmission. Any recommendations? Any other things to do when having these mods?

if you only use 87 octane gas in the truck, then use the 87 octane tune...

you don't want to use the diablo tune - that tune is made for 91/93 octane gas and it has the timing/spark advance set a lot higher and will cause knock when you get on it...

ok so what is the advantage to turning off the dod? also what can i expect from the new 6 speed update and when i update do i have to update everyone in order or just straight to the new update? mine says V9.01? Thanks

turning off the DOD will make it stay in 8 cyl. mode all the time, and a lot of people have found that they actually gain some mileage with it disabled....

all depends on if you do a LOT of highway driving or not...

predators will not be getting any update for tcm/tranny support... they are limited by their amount of memory and storage space...

when tcm/tranny support is finally done and available, it will be an update for the Trinity and new inTune programmer...

so the dod off helps mileage if mostly highway or mostly off highway and does it do anything for performance with it turned off?

off highway it helps, on highway its gotta be pretty flat to see any real benefit

also updated predator from v9r10 to v9r18t and tried to update to v9r21 and predator says can't downgrade from v9r16 to v9r21. what do i do?

thunderwolfx wrote:also updated predator from v9r10 to v9r18t and tried to update to v9r21 and predator says can't downgrade from v9r16 to v9r21. what do i do?

Load this, then 9r21.

so if you drive back roads all week like gravel etc where your speed varies it should help with the dod off ? i drive 50% gravel 30% highway and the rest town during the week. weekends are pretty much all highway what would you recommend on or off?

if that was my driving scenario, I'd turn it off...

ok so i went to install the two updates and neither of them show up when i try to send them to the tool yet when i check where i saved them they are still there ???

nevermind i got it

I disabled the DOD in my 2007 Yukon and have not noticed any difference in my gas mileage. I do feel more comfortable with it disabled as it should will benefit the longevity of the engine, no valves constantly collapsing then reactivating while switching back and forth from 4 to 8 cyl. operation and no chance for brief temperature change in the affected cylinders or parts while deactivated then reactivated, even if for a very brief amount of time.