Volvo first had the typical hollow noise and power loss during the motorway ride, as if there was no ignition, or gasoline more, but it went away at full throttle again. It only sporadically occurred, cars ran normally for days and suddenly he didn’t jump any more. After a day standing, the engine rattered for a few seconds, then only organs without jumping, can be left standing anyhow, for a long time, etc. Petrol pump runs, fuel splashes out of the valve d he rail, ignition coil replaced, distributor looks good, engine ran 100TSD KM. Benzifilter replaced, which was actually in it since 1997… OBD2 read out with Artlink400: no errors stored in the control unit, but injection bench 1 only 3.5% and now, after weeks only OL. keys wg immobilizer for second key tried. Petrol pressure regulator this engine (HSN 9101 TSN 740 125KW) did not in the rail I am at a loss…