Peugeot 807 smoke and DPF issue

Hi, I've got a 2010 Peugeot 807 diesel. A warning light's come on, and it's smoking when I accelerate. Also, the DPF regeneration doesn't seem to be working. Diagnostics suggest it might be the exhaust back pressure sensor. Anyone had this?

4 comment(s)

Hey! I had a similar issue with my 807. Warning lights, smoke... not a good sign! Was the smoke black or more of a greyish colour? Did you notice any changes in fuel consumption or engine performance?

Thanks! The smoke is rather blackish. I did notice a slight increase in fuel consumption, but I thought I was just driving more aggressively. What was the issue in your case?

Black smoke and increased fuel consumption sound very familiar. In my case, it was indeed the exhaust back pressure sensor. I tried cleaning it, but that didn't help for long. I'd suggest getting it checked out at a workshop.

Thanks for sharing! Took the car to the workshop today, and they confirmed it's a defective exhaust back pressure sensor. The repair, including parts and labour, came to 245€. I appreciate the help!

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