Hi all, help needed!
My B6 A4 1.9 TDi 130 has an odd problem. Recently it has started losing power and going into limp mode almost every journey. It did this previously and I would just restart the car and it would be fine for quite a while. However, now it's potentially a lot more dangerous as this happens mid-overtake on the motorway and I have no option to switch the car off and restart it. Now the odd thing is it seems to happen more when I've traveled downhill and am then attempting to go uphill (the worst time!).
The fault code it's coming back with is 17965 which, according to RossTech, means 'Charge Pressure Control: Positive Deviation'.
The solutions it suggests are:
- Check hoses, pipes aren't disconnected, blocked or leaking
- Check N75 valve for boost pressure control
- Check, Clean, Replace Charge Pressure Control
- Check, Clean mechanism for variable nozzles
Now I've tightened the few hose clips I could easily get to and there's some improvement but I was hoping someone may be able to narrow down the cause perhaps and tell me how I can perform the various other checks suggested.
Thanks for your help
My B6 A4 1.9 TDi 130 has an odd problem. Recently it has started losing power and going into limp mode almost every journey. It did this previously and I would just restart the car and it would be fine for quite a while. However, now it's potentially a lot more dangerous as this happens mid-overtake on the motorway and I have no option to switch the car off and restart it. Now the odd thing is it seems to happen more when I've traveled downhill and am then attempting to go uphill (the worst time!).
The fault code it's coming back with is 17965 which, according to RossTech, means 'Charge Pressure Control: Positive Deviation'.
The solutions it suggests are:
- Check hoses, pipes aren't disconnected, blocked or leaking
- Check N75 valve for boost pressure control
- Check, Clean, Replace Charge Pressure Control
- Check, Clean mechanism for variable nozzles
Now I've tightened the few hose clips I could easily get to and there's some improvement but I was hoping someone may be able to narrow down the cause perhaps and tell me how I can perform the various other checks suggested.
Thanks for your help
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