I have a 98 24 Valve cummins with and auto. Mods are built trans, edge juice with attitude, intake, and exhaust. So my problem now is that the truck will not shift out of first. Also does not seem that the torque converter is locking up at all. Will not do more then about 25mph, and when you left off the throttle the thing coast like a normal auto would. Speedo also is not working at this time. Is this governor solenoid? or what do you guys think.