Quadfractum
Member
Alright, so my 2.5L 2006 Spanish D40 with 250K ish km's on the clock has all of a sudden had massive power loss at low revs. It seems when the boost hits its peak, (4k in first, about 2.5k in the rest of the gears) it will accelerate and leave behind huge clouds of black smoke. (Usually, more than in the attached video) The symptoms came on very quickly, parked for 2 hours, and came back to these problems. OBD2 reader had no codes at all and no lights on the dash.
It doesn't seem to matter if the engine is hot or cold, (although air temps are a bit cooler, doubt it matters). I've tried cleaning the MAFS to no avail, I also just unplugged it, which seemed to kill the boost I get when I hit 2.5k revs, but it ran no worse than it did before. I've got a spare D40 which I will swap the MAFS with tomorrow to see if that helps too.
I also had a look in I think it was the EGR valve, that looked all good. The SCV was also replaced not too long ago, along with the fuel filter. I recently also filled up with regular diesel instead of the premium diesel I usually use, but that's probably just a weird coincidence. I took it for a quick test drive at the end of the day and the intercooler hose attached to the engine blew off.
I've probably forgotten to write a few things so please ask away, any help will be greatly appreciated!! Thank you in advance.
It doesn't seem to matter if the engine is hot or cold, (although air temps are a bit cooler, doubt it matters). I've tried cleaning the MAFS to no avail, I also just unplugged it, which seemed to kill the boost I get when I hit 2.5k revs, but it ran no worse than it did before. I've got a spare D40 which I will swap the MAFS with tomorrow to see if that helps too.
I also had a look in I think it was the EGR valve, that looked all good. The SCV was also replaced not too long ago, along with the fuel filter. I recently also filled up with regular diesel instead of the premium diesel I usually use, but that's probably just a weird coincidence. I took it for a quick test drive at the end of the day and the intercooler hose attached to the engine blew off.
I've probably forgotten to write a few things so please ask away, any help will be greatly appreciated!! Thank you in advance.