(speaking as my hubby) I replaced the transmission pump, got tranny put back in, added 4 quarts fluid, and cranked it up. while it was sitting in idle, and I was adding more fluid, it died. now it won't crank, no power to fuel pump, no power to spark plugs, etc. it says "no bus" and codes 920 and 921 blink on the onboard computer in dash. I've checked everything I can think of to check and I can't find the problem. PLEASE help!

 

ASD event. For whatever reason, the PCM is annoyed at one of your sensors. Crank sensor is commonly a victim of trans/engine R&R. Might wanna have a look at it, and see if it didn't take a beating.