# OBD II P0015 "B" Camshaft Position -Timing Over-Retarded (Bank 1)

**URL:** <https://community.cartalk.com/t/obd-ii-p0015-b-camshaft-position-timing-over-retarded-bank-1/23209>\
**Category:** Maintenance/Repairs\
**Created:** [December 10, 2008, 3:54am UTC](https://community.cartalk.com/t/obd-ii-p0015-b-camshaft-position-timing-over-retarded-bank-1/23209 "2008-12-10T03:54:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![TDdriver](https://avatars.discourse-cdn.com/v4/letter/t/cdc98d/32.png) [@TDdriver](https://community.cartalk.com/u/TDdriver)\
**Post date:** [December 10, 2008, 3:54am UTC](https://community.cartalk.com/t/obd-ii-p0015-b-camshaft-position-timing-over-retarded-bank-1/23209/1 "2008-12-10T03:54:32Z")

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I got the “Check Engine” light on my 2002 Volvo (Ford) S40. My OBD reader revealed the code P0015 “B” Camshaft Position -Timing Over-Retarded (Bank 1). What, if any, ways can I reduce the possibilities of the problem. My “research” shows these to be possible culprits: ?Incorrect camshaft timing  
  
 ? VCT solenoid valve stuck open  
  
 ? continuous oil flow to piston chamber  
  
 ? Camshaft advance mechanism binding  
  
 ? faulty VCT unit

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**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\
**Post date:** [December 10, 2008, 4:26am UTC](https://community.cartalk.com/t/obd-ii-p0015-b-camshaft-position-timing-over-retarded-bank-1/23209/2 "2008-12-10T04:26:25Z")

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The first thing I would do, would be to get a repair manual (like Haynes, or Chilton’s) and study the engine section thoroughly. You could, also, get a repair manual online, and/or get help from something like [www.alldata.com](http://www.alldata.com) ($25 fee).