2008 335i

Asked by Aug 02, 2018 at 01:26 PM about the 2008 BMW 3 Series

Question type: Maintenance & Repair


Hey Good Morning - I have a 2008 335i and had a
p0335 and p1727 fault code (crankshaft position
sensor). I swapped out the bmw crankshaft
position sensor for a new one from advanced auto
parts but the same error codes are there and I'm
still in limp mode after clearing the codes. Do I
need a battery reset or software update of some
sort? Or should I follow a specific sequence tasks?
Any suggestion to this fix would be helpful at this
stage.

I Change the crankshaft position sensor and I did a
battery reset where I simply disconnected the
negative cable and reconnected the battery...i
cleared the codes with an OBD scanner and still no
luck as far as those engine lights being cleared
permanently and getting out of limp mode

When I'm doing a formal reset and I wasn't sure if I
should register the battery and or when I'm
clearing the codes do I need a more sophisticated
scanner other than the OBD scanner to actually
fulfill the last phase of switching out the
crankshaft  sensor...it is an OEM part that I
purchase, I didn't purchase it from BMW...watching
videos I have seen that some of the guys did have
the BMW crankshaft position sensor which when
they installed it they were able to start the vehicle
right up and codes were cleared automatically, etc
but speaking with a retail shops like Advance Auto,
even BMW - they said that you can use an oem part
and you shouldn't have a problem

Since changing the sensor, while in the on position
(before starting engine) it does say ALL SYSTEMS
OK.  Then, after starting the engine the same fault
lights reappear.

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