Tuned in Texas

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Kenny D

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I'm not sure if this has been covered, I apologize in advance if it has.
Those that live in Texas or a state that requires an OBDII emissions test, does a tune or the use of a hand held tuner such as the DiabloSport effect the outcome of the test?
I am considering a handheld to gain some slight performance through my stock setup and AFM disable, but do not want to have to dance back and forth when the yearly test comes around.
 

gat0r

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i have never had an issue from a tuner on any vehicles.

as long as all maintenance is kept up on your rig & there are no more than 2 codes for check engine, you should be GTG.

i had a car that had Evap & HVAC codes (1 each) & that kept it from passing. it passed everything else.
went home fixed one, then brought it back & it passed. the other was due to my setup @ the time. no issues since.


oh & window tint on front windows...some inspection stations can be a bit finicky, if its darker than 35%
some overlook 20%
 

fiatdale

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Depending on where in TX you are - I have a great guy in Katy that will pass damn near anything as long as no lights on the dash. Doesnt care about tint.
 

MadDogDelpho

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Our mechanic does our inspections, and they know all the CELs we have are false alarms, so it's not that hard to pass inspection with them.
 
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Kenny D

Kenny D

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Thanks,
I wouldn't think just changing a few parameters and tweaking a few curves would cause a CEL as long as none of the emissions systems were bypassed, but I just wanted to be sure.
 
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Kenny D

Kenny D

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window tint on front windows...some inspection stations can be a bit finicky, if its darker than 35%
some overlook 20%

I have 35% on the front doors. Although I figure if you just rolled up with the windows down, how would they know unless they roll them up.
 

fiatdale

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Depends on the shop. Some will actually check, others (most) dont give a damn, unless its like stacked limo.
 

gat0r

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most places raise the window a bit to see it.

i have often thought of 35% on top 3", then 5% below
but that strip would drive me nutz while driving.

then if they raised them all the way, the gig would be up ... lol
 
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Kenny D

Kenny D

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I just ordered my Diablosport tuner. Does anyone know if the AFM disable is part of the canned tune or you have to do it as a custom tune? I don't plan on going wild, just want to plug in the 87 octane tune and AFM disable, with 130,000 miles I don't want to stress anything out.
 
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Kenny D

Kenny D

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Another quick question is that here in Harris Co they do a 10% ethanol blend in the fuel, has anyone else noticed an issue with their tune?
 

fiatdale

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You can remove it in either setting. Haven't noticed anything negative using Harris Co gas.
 

jeffbco

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I just ordered my Diablosport tuner. Does anyone know if the AFM disable is part of the canned tune or you have to do it as a custom tune? I don't plan on going wild, just want to plug in the 87 octane tune and AFM disable, with 130,000 miles I don't want to stress anything out.
Unless it has changed in the last couple of years, AFM disable is not a "custom" tune item - it has it's own option selection. Doesn't Diablo have instructions on their website - maybe a definitive answer there.
 

jeffbco

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Depending on where in TX you are - I have a great guy in Katy that will pass damn near anything as long as no lights on the dash. Doesnt care about tint.
If the stations are checking tint do they use a meter? I haven't seen any stations in the Austin area with light meters.
 
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Kenny D

Kenny D

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Unless it has changed in the last couple of years, AFM disable is not a "custom" tune item - it has it's own option selection. Doesn't Diablo have instructions on their website - maybe a definitive answer there.
After I had posted this, I managed to get with one of their sales consultants and he told me the procedure I should follow. Thanks for the reply.
 

16blkltz

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I just ordered my Diablosport tuner. Does anyone know if the AFM disable is part of the canned tune or you have to do it as a custom tune? I don't plan on going wild, just want to plug in the 87 octane tune and AFM disable, with 130,000 miles I don't want to stress anything out.

How do you like your Diablosport tuner? Which one did you order? I'm interested in a tuner for my 2016 Tahoe LTZ.
 
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Kenny D

Kenny D

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I got the Diablosport I2 Tuner for GM. i2030 is the model number I believe. I did the Advanced Tune option and selected the 87 octane and DOD disable. So far so good. I may switch to the 93 tune in a few months. There isn't much difference in the 87 tune and stock, I do notice a little more power in the higher RPM ranges like passing gear, but no difference when you barely ease in the throttle. I will see if the 93 octane tune gets a little more responsive.
 

SidewaystheSeven

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No CEL = pass. I have 5% tint. When getting an inspection, I wait until a warm day, find of those half seedy-looking used tire places that do inspections, roll the windows down, and unplug the window switch. I've never had a tech ask but, if they do, I just tell them they don't work.
 

16blkltz

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I got the Diablosport I2 Tuner for GM. i2030 is the model number I believe. I did the Advanced Tune option and selected the 87 octane and DOD disable. So far so good. I may switch to the 93 tune in a few months. There isn't much difference in the 87 tune and stock, I do notice a little more power in the higher RPM ranges like passing gear, but no difference when you barely ease in the throttle. I will see if the 93 octane tune gets a little more responsive.

I just ordered this DiabloSport Tuner. I think it's the same as yours. Can't wait to try it out along with this AFE intake. If all goes well, I should have both here and installed by this weekend.
 

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