Problems with BMW 118d N47N EGR Ventilation

[Matt865]

Good day,

I'm experiencing problems with the EGR valve. Here are the codes I'm seeing:

The range and performance of the P046C EGR sensor 'A' circuit

'A' control for P042F EGR is stuck closed.

The codes persist despite my two attempts to clean the egr valve.

Can you suggest anything I should do after this?

Many thanks

[Matt865]

https://www.amazon.com/s?ascsubtag=v1-a484af-606291-72ad3856a6-k&k=BMW+EGR+valve

[VWDaveBMW]

What brand of EGR did you install, and did you reset the adaptation?

[Matt865]

What exactly do you mean when you say "reset adaptation"? Instead of installing a new one, I simply cleaned the old one.

[Matt865]

🙃

[VWDaveBMW]

My apologies; I mistook it for having been replaced.
If cleaning does not resolve the issue, the fault codes suggest a problem with the position sensing. Using a real Wahler valve is the way to go.
In order for the ECU to learn the new valve positions, you must reset the adaptation with diagnostic equipment when you replace it.

[Matt865]

I was afraid it would be necessary to replace it by now, so I appreciate your help.

Excuse my seemingly elementary question: is there a special technique for disconnecting the power cord? When I was cleaning the egr valve, I left it connected because I was afraid I would break it.

Would it be better to use an app like Ista to reset the adaptations on my inexpensive scanning tool, the Fowell nt301?
Many thanks

[VWDaveBMW]

My standard procedure is to use long-nose pliers to slide up the small white locking tab, then squeeze it to remove the plug.
I believe that higher-spec foxwell, autel, launch, isa, etc., will be able to handle it, but the 301 won't.

[VWDaveBMW]

https://www.amazon.co.uk/s/?search-alias=aps&field-keywords=BMW+ISTA+diagnostic+software