I have code p0046 flashing on my scan tool. I have already change the solenoid and also the pcm, I also had a local shop check all the wiring and the wiring comes back fine. The local shop says I need a new pcm, I already have 2 and the same code is coming up on both so I can t see it being the pcm. I decided today in frustration today to over lay new wiring from the pcm to the solenoid. That plan did not work and I am getting the same code on both, the weird thing is that when I test the old pcm I'm getting 10 volt s 1 way and when I turn the tester cable s around I'm getting -8 volts. The new pcm just shows 0 both ways, neither pcm will activate the solenoid and I have zero boost. The only way I can get boost is to jumper the solenoid directly off the battery, witch I'm guessing isn't a good thing to do. I'm at a complete loss and feel like burning the truck to the ground, any help would be greatly appreciated. Thanks.