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I have attached both the ECM and the TCM tunes.

Like I said the engine is totally stock, and yes I would like to gain some more power for both towing and hauling.

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Already read through them, that's where the confusion started. Ive actually been using the efilive v2 for about 3 years now for diagnostic purposes, but like I said this will be my first time...

I'm looking at doing my first tune, but after doing quite a bit of reading and head scratching, i'm a little lost on where to start. I have a 2008 Chevy C4500 Kodiak truck with an 8.1 Gas engine...

A very similar thing happened to me today. I upgraded to the latest version of EFIlive, and when i went to connect to a truck, it stated PCM not detected. I know for sure i was able to connect to...

I was wondering if anyone ever had added a PTO to their vehicle and had to reprogram the PCM to raise the idle when the PTO switch is activated.

I know this can be done by the dealer with the...