2006 Tahoe, 5.3. I got a CEL a few months back that the knock sensors were a pending code. Replaced them today and now the truck won't start. I'm getting the following codes. P0068 Powertrain P0107 Manifold Pressure/Barometric Pressure circuit low input P0332 Knock Sensor 2 Circuit Low Input, Bank 2 The truck only cranks and no start. The DIC says "Reduced Engine Power". So I'm wondering if I forgot to plug something back in, but I've triple checked and there are no loose wires or connectors. Any suggestions? Thanks guys!