Tomorrow dear community! For about a month I have had the following problem with my Volvo V 40, 1.8 l, 122 hp, petrol, switch, 265 tkm: When I start the car after a short service life (refuel or similar), the engine runs unround and has no power. After some “15-20” km there is sometimes a short jerk and everything in the lot sometimes even after a long service life. This error does not always occur but it annoys. So first to the friendly (good self-help workshop for 15 years my choice):read out: Error Cylinder 1 Then we looked at the ignition cables and at one time a spark hit the engine through ______All changed !! Problem continued! Then the ignition coils were switched further available! Then we sent in the engine control unit and had it checked:Everything in order!!!!? Problem continued! Tip from the people who have examined the control unit: Injection nozzles!!! Injection nozzles continued to change problem! Ratlose on the whole line has been a pity for me?