Having looked up secodary air injection, I am even more confused, as the system is not normally required in diesel engines.

The car han't been used much in the last few months due to lockdown, so I wonder if that's affectig things.
I have had two other occasions of the SERVICE and EML lights coming on. First one said there was a dual mass flywheel fault. Cleared, never came back. Nect was on accelleraton, with same symptoms, but I'm sure it wasn't the same fault number, though I can't remember what it was, but I'm sure the description in Diagbox was something to do with the air inlet tract.

But all three happened on moderate accelleration, last two times when the engine was completely warmed up.

 

P2248 is listed as o2 sensor fault

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My typo. It should have read P2448, which is the air injection.

If it happens again I'll check with Diagbox.

 

Well it has happened again, twice yesterday. Each time I was travelling around 65 mph and put my foot down a bit more to pass another vehicle. Fault came up immediately. However, as this was on the M42, and I had to get home, I didn't have the option of checking with diagbox.
I wasn't aware that diesel engines used secondary air injection.

 

Hello,
I have the same issue with my 2014 308 SW II 1.6 BlueHDi 120. Do you have any updates or probably you have fixed this issue.

Best Regards,
Mykhaylo

 

No, I cleared the code and it hasn't come back.

 

I have this issue come up today unfortunately. EmL came on during motorway and limp mode not much power. Can someone tell me if its the lamba sensor 02 if so how do I find the exact right one ? Thanks