Exhaust gas flow P0400 code
Exhaust gas flow P0400 code
I installed FlashPro and uploaded a basic tune just changed timing slightly. Now I am getting P0400 "Exhaust Gas Flow" code and check engine light. What is the cause of this? All the boxes are checked for using EGR and doing EGR checks.
Re: Exhaust gas flow P0400 code
If you return to stock form the online menu does the error persist?
Re: Exhaust gas flow P0400 code
No, it has not come back since returning to stock.
Re: Exhaust gas flow P0400 code
Try uploading the calibration again.