Hey guys, new to the forum. Just after some help / info. I have a 2007 d40 auto, have recently removed dpf using delete pipe. 3 inch from turbo back. I've had the usual dpf light issues etc. Recently sent the ecu away to have the dpf parameters removed. Was running well for a few days. With no cel or dpf light. I then replaced my battery and now it turns over but won't start? I have no glow plug or check engine light on dash. Also the thermo fan comes on with ignition? Checked all fuses and relays there all fine. When I unlug the ecu the identical thing happens? Currently having the ecu checked. Just wondering if anyone else has any ideas? Kind regards Grant.