Ive got an 06 as well. It had a functioning dsp5 tune when i bought it but it had a s300 kit on it. I put a vgt turbo back on it. I got the same crank no start when i converted the stock file also. Im wondering if they used a Silverado file to get it to work correctly but i wonder if any of the stock kodiak functions would be lost. Did you find some way to get it to work or give up?