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codes p0001, p0002, p0003 and a dead o2 sensor 850

'97 volvo 850 NA 149,000 miles

p0001 : fuel volume regulator control circuit / open

p0002 : fuel volume regulator control range/performance

p0003 : fuel volume regulator control circuit low

Oxygen sensor dead. voltage varies between .455/.470v

ordered new o2 sensor, will install soon.

What piece of hardware do the above codes refer to.
fuel pressure regulator ?? computer control ??
car is getting bad fuel mileage (14-15mpg) have not had a chance to pull the spark plugs yet to confirm but feel the car is running rich

roll on
Peter






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New codes p0001, p0002, p0003 and a dead o2 sensor [850]
posted by  vesparally  on Thu Jan 26 14:08 CST 2012 >


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