Technical Service Bulletin
2065 – Engine Z19DTH/ J – Intake manifold, swirl flaps, actuator DTC: P1109, P2075
Vectra-C 2004…,Signum 2004…,Zafira-B 2005…,Astra-H 2004…
Customer complaint about lack of power and SVS lamp on. The following trouble codes might be set based on the installed application: a.) EDC16 C9 (2-actuator strategy, i.e. pressure sensor as well as pressure regulator fitted at fuel rail) TECH 2 shows DTC: P1109. b.) EDC16 C39 (1-actuator strategy, i.e. only pressure sensor fitted at fuel rail). TECH 2 shows DTC: P2075.
Problem might be caused due to sticking swirl flap or due to malfunction from swirl flap actuator.
Several modifications introduced since SOP. Latest improvement was a design change at the swirl flaps itself in order to make the flaps more robust and to prevent them from sticking. Engine-BP: Z19DTH17228334 (28.02.2007).
In case of customer complaint perform TECH 2 swirl flap actuator test in order to evaluate the problem.
Remove upper beauty cover in order to see the swirl flap linkage mechanism. Switch on ignition (no need to start the engine) take TECH 2 out of the vehicle to the engine bay.
Change into swirl flap actuator test and perform test. If linkage does not move at all but the actuator motor itself is working (audible) it might be that:
—>>> either the internal actuator motor mechanism is faulty
—>>> or the pin ball from the actuator lever has come off, the lever is bent or has just slipped off from the actuator joint. In this case the actuator needs to be replaced.
Note: If the modified intake manifold (=swirl flaps) is already installed please replace only the actuator.
In any other case it might be that the swirl flap linkage got stuck during the actuator test or does not move completely from one end to another. If this happens the intake manifold needs replacement together with actuator.