2001 Chevy Impala o2 sensor

2001 CHEVROLET IMPALA
187,564 MILES • 6 CYL • FWD • AUTOMATIC
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SCOOTERFLY
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car idle's really bad... code that appears is P0171 which in my haynes book says bank 1 too lean.
that would be the 02 sensor on the manifold? there are only 2 one on the manifold and 1 after cat?
Sep 6, 2008 at 10:09 PM
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RHALL77
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first check your fuel pressure and see where it is at and also check for a vaccum leak.
Sep 8, 2008 at 1:23 PM