Opel z22se idling problems

[Thomasj]

Hi guys,i have a 2005 opel astra g,2.2...i have idling problems,it fluctuates.did a service and changed all sensors with oem sensorsdid diagnostics,no faults found...help me please

 

[corsaZ22se]

Two common areas for idle faults are the throttle body needing removing and cleaning. Or a vacuum leak on the inlet side of the engine somewhere. Using brake cleaner sprayed around joints and pipes, if the idle goes up there is a leak there.
Does the car drive ok once off idle?