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Stumped on CODE P0172 (system Rich) @139K S70 1998

posted by  KlausC on  Sat May 22 09:22 CST 2010
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

It used to be easy to check the FPR on the early 850s, a clear vacuum line to the tree. Your car has a hard line that goes to the front of the manifold and then a flexible line to the hole in the manifold.

You could disconnect the vacuum line, cover the hole with some tape or a vacuum nipple, start the car, and if the FPR is leaking it will drip out of the hard pipe.

The fuel pressure regulator is back by the fuel filter.

Klaus

PS, pretty soon it will be time to visit the 'man'.
--
Why are Volvos so endearing? Its just a car.






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