Customer wouldn't allow me to do a forced regen so he asked about dpf brick removal.
I declined and said I don't know the outcome if you do it. Anyway he knew better and proceeded so now the eml is on and dropping into limp mode.
It had other issues such as diesel leaking into turbo vac control solenoid so lost boost, I sorted that but again eml on.
Next he googled and brought me in a voltage regulator to fit, sure enough I could get the ecu to report dpf regenerated and lower dpf pressure to 0mbar but struggled to delete dtc for dpf punctured or incorrect data received.
So you achieve one part but fail on another and just lose time unpaid for.
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