POOBD / 290900 Faults after EGR Cooler Recall?

[MaccaTVR]

Hi,



I'm at my wits end at the moment with this fault and looking for some help regarding this, specifically if anyone has any experience with this after the EGR recall.



My Cooper D went in the for recall as it was giving drivetrain errors. They replaced a lot of parts including exhaust manifold, inlet manifold / swirl flaps, exhaust pressure pipe, gaskets etc etc.



Car ran fine for a few months with no issues, however this fault keeps popping up and never popped up before. It started with the engine management light coming on but then would turn itself off again a day later then back on again and again. Now it just stays on the whole time.



I'm a driving instructor so cover a lot of miles. Would say since the recall the car covered around 8000 miles before the fault stays on constantly.



Basic OBD code is P00BD

- MAF "A" Circuit Range/Performance Flow Too High



In depth scan with Bimmerlink code is 290900 - Air system, air to EGR mass flow plausibility: measured air mass too high compared to calculated air mass



Things I've done...

Replaced air filter

Checked for any visible leaks or loose fittings - none.

Checked tightness of all intake related fittings - all good.

Used smoke machine to check for leaks - none visible.

Removed EGR valve and cleaned it (wasn't that dirty anyway)

Removed DPF and got it professionally cleaned out as was also getting a fault with this so thought it could be related. This fault has now gone but the main one remains.

Reset DPF mileage and registered a new DPF.

New Differential exhaust pressure sensor and registered a new one.

Cleared all faults but keeps coming back.

Handed to my local garage who's pretty good and he never had any luck.



I haven't yet tried a new MAF sensor but my gut tells me this won't be the problem.



I'm now checking to see if anyone has any experience or knowledge of this especially after the recall. If this is all due to the recall then surely it should be fixed under the warranty for recall parts... Proving that this is the issue though without being charged a fortune is a different matter.



Any help much appreciated.

Thanks

[CarsOrBikes]

the EGR recall is getting done again on a lot of cars apparently, even apparently up to a third time, could be worth running your vin by the dealer to see if it's in the range of still affected cars perhaps