Hello, i changed the the breather box on a 99 s80. that went smooth no issues. I washed off the old oil under the car so that any oil leaks would be easy to see. After doing so the car would not start. I did not wet anything on top of the motor just the bottom. IM a vw guy and i know all the issue places to look on those when something like this happens. Im lost on this volvo, Any info you can provide would be great, thanks!

ps is the ignition control module located in the blk box in front of the coolant bottle?

 

the computer is in the black box in front of the powersteering/ coolant res. is has an air intake hole in the front of it that you might have got water into. If that is the case then start saving your money now! are you not getting a spark at any point in time from any of the cylinders? check computer housing box for water then check cam sensor connector for water. any connector you do disconnect I would suggest you put dielectric grease into so you don't have to worry about water intrusion and corrosion. were you using a pressure washer? if high pressure was used you might have ripped a connector out of a plug or pulled a plug apart. Just my suggestion.
1. check fuses first
2. check all plugs to see if any give a spark. pull fuse for injectors while cranking though so you don't flood cylinders
3. check connectors on cam sensor and crank sensor
4. check voltages at computer