Bought and installed the diablo predator u7193. The truck ran normal before installation. I followed the instructions, backed up the factory setup, and installed the 87 Octane Program. Now the truck idles LOW, down to 250-350 range and dies if any load is put on accessories. If I program the idle to be higher, it idles to that set RPM after 10 seconds or so, but still falls down to about 250-350rpm if I change from park to reverse, to drive, etc. This often causes it to die again. If I shut the truck off with the A/C left on, it won't start without my foot on the gas. So basically, the program messed up the idle characteristics of the engine. Here's the fun part; I then gave up and programmed the "return to stock" setup, and everything went good supposedly (according to the predator). Started the truck up and everything is the SAME as when it had the 87 octane program. So it completely lost the factory stock program. So what can I do? I believe there is someone on here who makes programs for these tuners, would you be willing to help me out please? Thanks for the help guys, Blake ---------- Post added at 04:33 PM ---------- Previous post was at 04:25 PM ---------- Not sure if it makes a difference, but the driver information display showed "Reduced Engine Power" AFTER installing the tune. I figured it was just because the Predator changes fuel settings, but now I'm second guessing it.