I have Yukon Denali with a 6.0 L. After I put a CAI on I started throwing P 0171 and P 0174 codes. I know I don't have a leak, because I have to change brands because of other issues. When I put a time only, still get them. Taking with others, they have said just change the mix.

Now this sounds ...

mikel wrote:6.0 picks up more power than the 5.3

When I put the cold air intake and magna flow exhaust on, it was kind of a wash with the tune. Will this be the same with the 6.0?

Had the tune on our 5.3 Yuki. Unfortunately someone did not see the truck, they are hard to miss and turned into it and it's a total loss. Looking at a 2005 Yukon XL Denali with the 6.0. My understanding is the 5.3 is not a Vortex engine even though the silly cover says it is, but the 6.0 is and the ...

I have a 2000 GMC Yukon XL with K&N Cold Air Intake and the 24x9 (Largest they make) MagnaFlow. I took the Diablo Tune off before they put the Magna Flow on, was really impressed on how much it made a difference.

Have a long Griswold vacation next week, not towing, standard tune fine or do these ...

Yes, no lock on it.

Trying to remove the Diabolo Build and put the back up on. Had no problems putting it on, but cannot take if off. Nothing has changed. No auto start or anything like that.

Suggestions?

Thanks

2004 Chevy Suburban 5.3 1500

After loading the Diabloe Tune on my chevy Suburban and running a couple of tanks of 93 through, I am still getting the engine light and the code for Knock Sensor 1, Low Bank. Have to believe it is from the tune.

Any ideas?

On my 2004 Chevy Sub, 5.3 I installed the Diablo Tune and switched to 93. Been through multiple tanks of fuel, and still trips this. Seems rather a coincidence that getting this after the Tune.

Suggestions?

Really, so neither is better than the other for towing a trailer into the mountains? Would you recommend doing a custom tune?

Seems a little to simple I guess.

Just got my Trinity 1000. Bought it for when towing, and any performance would be great.

Which program would you recommend or is this going to be a custom tune?

It has a remote starter. I do notice that when it tried to go program, the GM security light starts blinking. Maybe I switch to the 2004.

Just got my trinity and did the software update. Went out and attached to my 2000 GMC Yukon XL. I am going in circles getting now where. Everytime I try and program, It decides it can get the VIN PCM or Can't Communicate either.

I also think I get a message in there about compatibility.

What's the ...