S80 ECM 640A CAMSHAFT RESET VALVE

  • Tiny
  • Markiemark79
  • 2002 VOLVO S80
  • 107,000 MILES

Hi I ownn s80 2002 107000 2, 4l manual petrol but after timming belt changed came up on my dash board engine light ECM640A camshaft reset valve so wot did that mean and also do I need to replace camshaft sensor coz after deleting all faulty codes car works perfect but after 2-3mils driving everythings commin back as it was be4 I mean car hasnt power. Thx

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Saturday, March 10th, 2012 AT 8:44 PM

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  • Tiny
  • Fixitmr
  • MEMBER

Likely a clogged/faulty intake camshaft solenoid valve.

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Saturday, March 10th, 2012 AT 9:26 PM
  • Tiny
  • JIS001
  • EXPERT
  • 2,203 POSTS

If light came on after the belt change that you could be off a tooth or two. Recheck that timing marks line up.

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Sunday, March 11th, 2012 AT 3:49 AM

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