Question about 2001 Toyota Highlander
Too lean on bank #2, usually a vacuum leak (hose or intake manifold), also check/clean your Mass Air Flow meter. There is a Technical Service bulletin on this issue too:
it may or may not apply, but further investigation is warranted-look for the obvious items first (up top).
Posted on Mar 22, 2011
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Posted on Jan 02, 2017
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