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code PO171 V70-XC70 2004

posted by  KlausC on  Tue Jul 30 10:08 CST 2013
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last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

Type of engine does matter, NA or turbo. Both engines will develop vacuum leaks after 10 years, resulting in a 'lean' condition.

The oil dipstick check is for vacuum and can only be reliable if the light pressure is attempting to inflate a finger on a latex glove covering the tube.

Best is checking a vacuum line at the intake manifold with a vacuum gauge, as it should read around 17psi negative at idle with a warm engine.

Read this thread completely:

http://forums.swedespeed.com/showthread.php?145137-P0171-System-Too-Lean
--
Klausc, a Volvoholic






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New code PO171 [V70-XC70][2004]
posted by  someone claiming to be Art  on Mon Jul 29 14:49 CST 2013 >


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