Volvo S80 1999: misfire cyl 3

ik heb code p0600 en daar lees ik dit over:This is a commonly misdiagnosed code inasmuch as it may cause a deceptive symptom. Always bear in mind that the code P0600 indicates a communication failure. For instance -- an ignition system failure or a failed fuel injector can cause a misfire. An inexperienced technician may begin by attempting to diagnose the affected system rather than the loss of communication. If the ECM is not controlling the ignition control module or grounding the fuel injector, a misfire will occur. This is not a fault with the system, but with control of the system itself. Depending on the location of the failure, the following symptoms may be present: Check engine light illuminated accompanied by an additional code, ABS light illuminated, Transmission light illuminated (vehicle may not shift properly), Big drop in fuel economy, Driveability problems may occur, such as stalling at an idle, rough running and poor acceleration, or Problems with a particular system indicating a possible communication loss in this area.
en inderdaad, kilometer teller valt uit, kermis van lampjes op het dashboard ook. maar waar komt het vandaan foei lastige storing