I just recently put a S80 2.9l twin turbo motor in a v70 2.5l turbo, transmission and torque converter included. After putting everything back together i tried cranking the car and nothing. The dashboard lights come on but when I turn the key to start absolutely nothing happens. No click, no starter, no nothing. The error codes are as follows: P0700, P0798, P0763. Anybody have any ideas as to what the culprit might be? Thanks in advance!

 

so you took the ECM and engine harness and then connected to the harnesses and computers like the TCM etc without any reprogramming to pair the computers?

 

I actually brought the ecm and tcm from the same engine I intend to use. It turned out that I had the wrong tcm in at the time. Then I found out that I had the wrong starter for the engine. They look the same. The correct starter is about 3/8" longer. So now that the engine is trying to turn over it sounds like someone dropped a screwdriver or something in the transmission and it's not cranking. I get a P0700 code now that I've erased the others. I'm swapping out the camshaft and crankshaft sensors to ones I know are from an S80. Thanks for your reply btw

 

Good luck with that!