Hi,
I have what I think is the Australian equivalent which is an Astra SRI which has the Z22SE engine.
Mine is on it's 4th coil pack at 132,000km and can't believe how coil packs have let me down. I am really happy with the car otherwise.
Anyone ever found what makes these cars go through so many coil packs?
Originally I thought it was bad design placing the coil pack in the cam tunnel which would just boil the coil so I left the engine cover off to experiment, 3 weeks later another coil pack!
I also thought the code P0340 (cam sensor) was caused by the coil pack as this Z22SE does not have a cam sensor, but after fitting another GM coil pack the code reappeared.
Any contributing replies are greatly appreciated.