I downloaded the latest upgrade yesterday and installed it in the truck. Now I am going out to remove the tuner from my truck. It is terrible now. Acts like a gasser with a couple of plugs missing. Seems the oversensitive accererator is a little improved, but misses at higher RPMs now. About ready ...

The tuner really picked up my '06 C-4500 Kodiak and milage is up a little. The tune has made low speed drivability real bad. Just as I start out at about 1000 RPM, in 1st and 2nd gears, the engine starts bucking till I let off or give it more throttle. After I get up to speed, no indication of ...