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Marty
Marty, BMW Technician
Category: BMW
Satisfied Customers: 56245
Experience:  Bosch Certified Master Technician with over 35 years experience in the automotive industry.
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I HAVE A FAULT CODE 2B63 SENSOR IS NEW! Assistant: Which

Customer Question

HI I HAVE A FAULT CODE 2B63 SENSOR IS NEW!
Assistant: Which particular sensor are you asking about? And have any trouble codes been triggered?
Customer: EXHAUST CAMSHAFT SENSOR
Assistant: What is the model/year of your BMW?
Customer: 118i 2006 ENGINE N46B20B
Assistant: Are you fixing your vehicle yourself? What have you tried so far?
Customer: I TRIED TO CHECK THE WIRING THAT IS OK I CHECKED THE TIMING OK CHANGE SENSOR OK THE FAULT IS STILL THERE ENGINE NO POWER AND NOISE
Assistant: Anything else you want the mechanic to know before I connect you?
Customer: NO JUST THAT
Submitted: 1 month ago.
Category: BMW
Expert:  Marty replied 1 month ago.

Hi, my name is***** fault code will usually be caused by incorrect camshaft timing due to a bad chain tensioner or a stretched timing chain. If the engine is noisy I would suspect a stretched chain or collapsed tensioner or a fault with the camshaft adjuster.

Let me know if you have any questions.

Customer: replied 1 month ago.
the timing chain is new is tesioned the noise is after 4k revs adnd when you lift the feet from accelerator pedal
which is the adjuster?
Expert:  Marty replied 1 month ago.

The adjusters are at the front of the camshafts.

Customer: replied 1 month ago.
the reluctor plate?
Expert:  Marty replied 1 month ago.

No, the adjusting units behind the plates.

Customer: replied 1 month ago.
the gear?
Expert:  Marty replied 1 month ago.

Correct

Expert:  Marty replied 1 month ago.

Specifically the exhaust gear. You can try swapping the cam adjusting solenoids from side to side and see if anything changes.