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Old 06-24-2020, 12:19 AM   #1
Join Date: Jun 2020
Posts: 1
Unhappy ESP problem 9-5 2.8T XWD Aero, 2011

Hi friends,
I have following problem with ESP on my 9-5 Aero 2.8T XWD, 2011.
After starting engine and driving approx. 2 minutes, ESP failure appears on display. Engine goes to “protecting mode” switching off turbo. This status takes approx. 1-2 minutes. Then ESP failure disappears from display and engine returns into a normal mode. This procedure repeats few times within first 20 minutes of driving. After that engine runs well without any problem. This issue repeats when car stops for more than 3 hours. In other words, I am facing this problem every morning driving to my office and every afternoon driving to my home. It takes 5 months already.
I visited service which owns GM diagnostic device with new9-5 software. The diagnostic showed two errors: lambda (EGO) sensor and mass air flow sensor. They changed both but situation remains same. I am getting crazy of that, so if somebody can give me some idea, I will be happy. Thanks in advance.
J35 is offline  
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