Our 2013 4D56 has got issues with the EGR valve. P0401 insufficient flow detected. Took the valve off & the valve can be opened easy enough & it closes without any assistance.
Is there a way to test these valves or is it a case of throw a new one on & see what happens?
Many thanks all!👍
You can watch the valve opening and closing using an OBD scanner that has Live Data
The valve is controlled by a Leccy motor, pretty sure you can just buy the motor and swap it.,
Chris Valentine sells a box that keeps the EGR valve closed, but yours needs to be 100% working to fit one.
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