I have an 04' S80 T6 that I have recently replaced the throttle body, mass air sensor, fuel pressure regulator and crankshaft position sensor on. Most recently the throttle body was replaced and the car ran fine until the temerature in my area went from 55 degrees to about 30 degress in one day. The car has not started since the weather turned cold-starting fluid does nothing. Any help would be greatly appreciated. This car ran trouble free for the first 2ooK, however since turning 200K it has become a nightmare, and I no longer trust it to go any distance.

Thanks

 

If starting fluid does nothing, I'd say it's a no-spark issue. May want to re-check the crank position sensors if it just cranks and doesn't start, as if something isn't right with those the car will not provide ignition. I've had no experience with these on mine, but I did have a Northstar cadillac that had CPS's go bad and this sounds an awful lot like that.