Mark you might want to check the pins in the sensor connector. If you
have access to a voltmeter it is easy enough to check for bad
electrical connections.

If your new gasket holds the face of the sensor too far from the cam
you will also have problems. There is very little margin for error in
positioning the clearance between sensor and cam.

It is also possible that it is trying to tell you the cam isn't in the
correct position at a given engine RPM. BMW codes are a bit sketchy
when it comes to defining a problem. Hooking up a good diagnostic
analyzer can tell you what degree of advance the system is seeing at
various RPM's.

RJD


On Wed, 29 Oct 2008 21:33:19 -0400, mark barron
<mbarron@chartermi.net> wrote:

>Following several '41' errors, once followed by a limp home mode
>episode, I replaced the sensor with one from Febi. The sensor came with
>a gasket
>that was rather small in cross section. I bought the "thicker" one
>recommended by the seller. With this recommended gasket the sensor
>seemed to fit more snugly. The holding bolt is snug. Now I am still
>getting the same error
>Namely , 41 from table 19 using my Peake code reader.
> Assuming that the new sensor is good, do you have any ideas
>why I am getting this error?
>Many Thanks, Mark

RJD wrote:
> Mark you might want to check the pins in the sensor connector. If you
> have access to a voltmeter it is easy enough to check for bad
> electrical connections.
>
> If your new gasket holds the face of the sensor too far from the cam
> you will also have problems. There is very little margin for error in
> positioning the clearance between sensor and cam.
>
> It is also possible that it is trying to tell you the cam isn't in the
> correct position at a given engine RPM. BMW codes are a bit sketchy
> when it comes to defining a problem. Hooking up a good diagnostic
> analyzer can tell you what degree of advance the system is seeing at
> various RPM's.
>
> RJD
>
>
> On Wed, 29 Oct 2008 21:33:19 -0400, mark barron
> <mbarron@chartermi.net> wrote:
>
>> Following several '41' errors, once followed by a limp home mode
>> episode, I replaced the sensor with one from Febi. The sensor came with
>> a gasket
>> that was rather small in cross section. I bought the "thicker" one
>> recommended by the seller. With this recommended gasket the sensor
>> seemed to fit more snugly. The holding bolt is snug. Now I am still
>> getting the same error
>> Namely , 41 from table 19 using my Peake code reader.
>> Assuming that the new sensor is good, do you have any ideas
>> why I am getting this error?
>> Many Thanks, Mark
Thanks so much for your reply RJD!