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So I've been fighting with the Dubacle of a transmission on my 2011 Silverado. 5FDP has been awesome helping me along the way, but I still have some questions for the group since I can't find anyone...

I reset the battery and it didn't help. I then plugged a OBD2 scanner in and surprise surprise I had no communication. What fixed it was I grabbed my stock tune and did a "write all" using HP tuners,...

I guess I'll pay to get it towed to the dealer and try that.. I didn't think HP tuners would just brick something like that.. I was reading it not writing.. I'd also think there'd be a way to...

I was being a idiot and unplugged my cable while doing a read on my 2011 LTZ ECM. I'm tuning for a cam. the computer just said service trailer system And stabilitrac. I unplugged the cable and...

Anyone have the stock file for a 2011-2012 Silverado with the updated OS to correct the crappy shifting issues? Truck I bought had a really bad tune and the repository tunes I found bricked my old...

Been trying to get rid of a shift flare and improve shift quality on my 6L80. I basically copied the settings from a 2013 Silverado with a 6.2 engine and 6L80 since it had all the updates. I was told...

Can you PM me and guide me through? I'm lost.. I'd like to give you my number.

I really need some advice here. I apologize ahead of time but I'm on a mobile device since I'm currently deployed and won't be going home for a few weeks. My dilemma is I picked up a 2011 Chevy...

Filled up with a tank of 91 and the misfire was better but still throwing a P0300 and the truck felt like it was running on 6 cylinders at 2,000 RPM. Pulled plugs and found No.1 plug has shattered...

5FDP had a look and the previous tuner had set the 1-2 shift rev limit for 5,500 RPM. think we got it figured out.

ive been letting the truck idle and drove it around for a few hours and its slowly getting much better, it must be learning fuel trims.

interesting, the 5,500 RPM rev limiter explains the issue...

Hello everyone, 2011 Silverado with the 6l80. i replaced my truck with a stock tune from the repository since the tune on it prior was causing huge issues. i messed up and now the new tune is...

Hey everyone, I bought a 2011 Silverado that has a garbage tune on it from what I can only assume was a cheap handheld tuner. It spark knocks on 87 and ethanol, pulls engine timing and fuel in the...

Hey guys. Im currently working on a truck that got a horrid tune done to it at some point. I'm stuck at this one issue. When at WOT, the 1-2 shift seems to hit its Rev limiter or have fuel cutoff...