Hello, yesterday I allowed my V70 (99er T5, 190 tkm) times service. So oil change + filter and new spark plugs. When I was finished, after I started the engine, the engine control light… So I read out the error codes with the OBD2 : – P0445 Verdunst.-Emiss. Kontr.syst. Rinse-Contr.vent. Circuit Short circuit – P0245 Turbocharger Exhaust valve A too low – P0031 Lambdasonden Heating Control circuit low (Bank 1 Sensor 1) – P0037 Lambdasonden Heating Ko Ntroll circuit low (Bank 1 Sensor 2) After a test drive, I also noticed a power loss, especially in the area where the turbo would have to press. Otherwise, the engine sounds normal and runs nicely round, so that I can actually exclude a problem by the spark plug or oil change. Unfortunately, I can not make a connection between all the errors, and certainly not why they occur now after the service… For me it seems s o as if somewhere charging pressure is lost and therefore the signals at the Lambda are not right, but well, these are daring assumptions… Maybe someone can help me…