P125B

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Kit44
BMW Enthusiast
Posts: 2
Joined: 10 Jun 2017, 23:28
Car model: BMW e91 touring
Location: Beccles, Suffolk, UK

P125B

Post by Kit44 » 11 Jun 2017, 09:56

Getting trouble codes: P125B, P00BD and P122F.
I Have searched through all the tables found and there is no listing for these codes.

The vehicle is an e91 MY2008 4 cylinder petrol engine (N46) manual.
Please has anyone seen these codes?

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cockneyrebel
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Car model: bmw E36 saloon.
Location: Dorset.

Re: P125B

Post by cockneyrebel » 11 Jun 2017, 11:16

Most with the answers to this are in the Netherlands at
the moment, so give it a couple of days.
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tannan
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Car model: 2013 bmw 320d f30
Location: Liverpool
Location: Liverpool

Re: P125B

Post by tannan » 11 Jun 2017, 13:38

P125B BMW
Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.
code P00BD (Mass or Volume 'A' circuit Range/
Performace Airflow too high)
P-Code: P122F NOx Sensor Binary Oxygen Sensor Signal Circuit Shorted (Bank 1)
Hope this helps

I would say the 1st fault code or 2nd is your problem and the 3rd is reporting the lean or rich running

Kit44
BMW Enthusiast
Posts: 2
Joined: 10 Jun 2017, 23:28
Car model: BMW e91 touring
Location: Beccles, Suffolk, UK

Re: P125B

Post by Kit44 » 11 Jun 2017, 20:10

Many thanks tannan, I must say I never thought I would get such a good answer so soon.

I very much in your debt

regards Kit44

tannan
BMW Enthusiast
Posts: 68
Joined: 14 Apr 2017, 15:11
Car model: 2013 bmw 320d f30
Location: Liverpool
Location: Liverpool

Re: P125B

Post by tannan » 11 Jun 2017, 22:38

I would like to take the credit for the answer but I did look it up and just reported it back to you :)
I do hope it helps you find the fault clean the mass air flow with carb cleaner 1st if that dose not work then look for your
Vac leaks mate.

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