Diablo tuner, car only runs 3 seconds and shuts off

[LillianaVolkman]

Okay so I bought the T2 Diablo and unlocked PCM, I got the base tune from it and it told me to switch to unlocked pcm. After I put the unlocked one it asked to turn key on then it asked to do a calibration update, then after it was done it said “restored factory data” or something close, and it was ready to tune then I think. I decided to turn it on to test it out first before tuning it and it would only turn on for 3 seconds or so then it would cut off. I figured it should run. Tried it a couple times wouldn’t work, I also seen it didn’t have 93 octane tune either, just a few and a 91 one. I had to take my boy to his game and then work so I put the original one back in and called it a day. Anyone who knows about this stuff got any advice? Tomorrow I might try to give it a tune and try it again or I might wait till Monday and call them.

[mikel]

assuming this is a 2019+, the directions with the pcm should advise you to read the factory pcm data first, and transfer it to the new pcm. Not doing so will result in this scenario with a security issue.