When starting my car and turning to any of the sides, the tires creak. But it is only in the first turns that this occurs, then the failure disappears and I can turn without any creaks. In case it has something to do, the brakes and alternator have been recently changed. Thanks for your help.

I've had an Astra 1.7 cdti Sport since 2007 and, some months ago, it was without being used for some days and, when trying to start the engine again, it did not respond. It was towed to the agency where it was checked and I was told the alternator was failing. It was replaced and the car started and worked properly. Some weeks later, the same thing occurred, and I was told it was the battery this time. It was replaced for another Varta, like the one it had, and the vehicle started. However, it is still happening that, if the car is stopped for two days, it won't start then. Next week, I'll be… Read complete

I would like to know what it is that needs to be replaced, the computer indicates the following:
Sensors 1-2 correlation Accelerator pedal position / exhaust butterfly valve
Sensors 1-2 correlation Accelerator pedal position
Electric drive control Emergency starting butterfly valve
Relay/ Secondary circuit fuel pump
When warm, the vehicle does not accelerate properly and does not work as it should.

I did engine overall and then when I start the car it turn but no spark at the plugs and injectors and when I check the module at the module some wires that has to supply electric they don't have responding spark so what must I do