I keep getting an over boost code from time to time , and when it does it goes into no boost mode. This seems to have started when I had brand new turbo fitted. First thought's was TCV but I've now replaced that with ipd TCV and still getting the error. If I reset ecu it behaves it's self for a week or so then back comes the over boost code, any one got any ideas? My next thought was map sensor. car isn't showing any warning lights on dash.
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